638989920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:278

約数の個数: 288

約数和(自身を含む): 2278523520

約数和(自身を除く): 1639533600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 72, 79, 80, 82, 90, 96, 120, 123, 137, 144, 158, 160, 164, 180, 205, 237, 240, 246, 274, 288, 316, 328, 360, 369, 395, 410, 411, 474, 480, 492, 548, 615, 632, 656, 685, 711, 720, 738, 790, 820, 822, 948, 984, 1096, 1185, 1230, 1233, 1264, 1312, 1370, 1422, 1440, 1476, 1580, 1640, 1644, 1845, 1896, 1968, 2055, 2192, 2370, 2460, 2466, 2528, 2740, 2844, 2952, 3160, 3239, 3280, 3288, 3555, 3690, 3792, 3936, 4110, 4384, 4740, 4920, 4932, 5480, 5617, 5688, 5904, 6165, 6320, 6478, 6560, 6576, 7110, 7380, 7584, 8220, 9480, 9717, 9840, 9864, 10823, 10960, 11234, 11376, 11808, 12330, 12640, 12956, 13152, 14220, 14760, 16195, 16440, 16851, 18960, 19434, 19680, 19728, 21646, 21920, 22468, 22752, 24660, 25912, 28085, 28440, 29151, 29520, 32390, 32469, 32880, 33702, 37920, 38868, 39456, 43292, 44936, 48585, 49320, 50553, 51824, 54115, 56170, 56880, 58302, 59040, 64780, 64938, 65760, 67404, 77736, 84255, 86584, 89872, 97170, 97407, 98640, 101106, 103648, 108230, 112340, 113760, 116604, 129560, 129876, 134808, 145755, 155472, 162345, 168510, 173168, 179744, 194340, 194814, 197280, 202212, 216460, 224680, 233208, 252765, 259120, 259752, 269616, 291510, 310944, 324690, 337020, 346336, 388680, 389628, 404424, 432920, 443743, 449360, 466416, 487035, 505530, 518240, 519504, 539232, 583020, 649380, 674040, 777360, 779256, 808848, 865840, 887486, 898720, 932832, 974070, 1011060, 1039008, 1166040, 1298760, 1331229, 1348080, 1554720, 1558512, 1617696, 1731680, 1774972, 1948140, 2022120, 2218715, 2332080, 2597520, 2662458, 2696160, 3117024, 3549944, 3896280, 3993687, 4044240, 4437430, 4664160, 5195040, 5324916, 6656145, 7099888, 7792560, 7987374, 8088480, 8874860, 10649832, 13312290, 14199776, 15585120, 15974748, 17749720, 19968435, 21299664, 26624580, 31949496, 35499440, 39936870, 42599328, 53249160, 63898992, 70998880, 79873740, 106498320, 127797984, 159747480, 212996640, 319494960, 638989920]

約数ペア:

[(1, 638989920), (2, 319494960), (3, 212996640), (4, 159747480), (5, 127797984), (6, 106498320), (8, 79873740), (9, 70998880), (10, 63898992), (12, 53249160), (15, 42599328), (16, 39936870), (18, 35499440), (20, 31949496), (24, 26624580), (30, 21299664), (32, 19968435), (36, 17749720), (40, 15974748), (41, 15585120), (45, 14199776), (48, 13312290), (60, 10649832), (72, 8874860), (79, 8088480), (80, 7987374), (82, 7792560), (90, 7099888), (96, 6656145), (120, 5324916), (123, 5195040), (137, 4664160), (144, 4437430), (158, 4044240), (160, 3993687), (164, 3896280), (180, 3549944), (205, 3117024), (237, 2696160), (240, 2662458), (246, 2597520), (274, 2332080), (288, 2218715), (316, 2022120), (328, 1948140), (360, 1774972), (369, 1731680), (395, 1617696), (410, 1558512), (411, 1554720), (474, 1348080), (480, 1331229), (492, 1298760), (548, 1166040), (615, 1039008), (632, 1011060), (656, 974070), (685, 932832), (711, 898720), (720, 887486), (738, 865840), (790, 808848), (820, 779256), (822, 777360), (948, 674040), (984, 649380), (1096, 583020), (1185, 539232), (1230, 519504), (1233, 518240), (1264, 505530), (1312, 487035), (1370, 466416), (1422, 449360), (1440, 443743), (1476, 432920), (1580, 404424), (1640, 389628), (1644, 388680), (1845, 346336), (1896, 337020), (1968, 324690), (2055, 310944), (2192, 291510), (2370, 269616), (2460, 259752), (2466, 259120), (2528, 252765), (2740, 233208), (2844, 224680), (2952, 216460), (3160, 202212), (3239, 197280), (3280, 194814), (3288, 194340), (3555, 179744), (3690, 173168), (3792, 168510), (3936, 162345), (4110, 155472), (4384, 145755), (4740, 134808), (4920, 129876), (4932, 129560), (5480, 116604), (5617, 113760), (5688, 112340), (5904, 108230), (6165, 103648), (6320, 101106), (6478, 98640), (6560, 97407), (6576, 97170), (7110, 89872), (7380, 86584), (7584, 84255), (8220, 77736), (9480, 67404), (9717, 65760), (9840, 64938), (9864, 64780), (10823, 59040), (10960, 58302), (11234, 56880), (11376, 56170), (11808, 54115), (12330, 51824), (12640, 50553), (12956, 49320), (13152, 48585), (14220, 44936), (14760, 43292), (16195, 39456), (16440, 38868), (16851, 37920), (18960, 33702), (19434, 32880), (19680, 32469), (19728, 32390), (21646, 29520), (21920, 29151), (22468, 28440), (22752, 28085), (24660, 25912)]