287921920

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^2$

素因数の和:80

約数の個数: 216

約数和(自身を含む): 821418192

約数和(自身を除く): 533496272

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 121, 128, 130, 143, 160, 169, 176, 208, 220, 242, 256, 260, 286, 320, 338, 352, 416, 440, 484, 520, 572, 605, 640, 676, 704, 715, 832, 845, 880, 968, 1040, 1144, 1210, 1280, 1331, 1352, 1408, 1430, 1573, 1664, 1690, 1760, 1859, 1936, 2080, 2288, 2420, 2662, 2704, 2816, 2860, 3146, 3328, 3380, 3520, 3718, 3872, 4160, 4576, 4840, 5324, 5408, 5720, 6292, 6655, 6760, 7040, 7436, 7744, 7865, 8320, 9152, 9295, 9680, 10648, 10816, 11440, 12584, 13310, 13520, 14080, 14872, 15488, 15730, 16640, 17303, 18304, 18590, 19360, 20449, 21296, 21632, 22880, 25168, 26620, 27040, 29744, 30976, 31460, 34606, 36608, 37180, 38720, 40898, 42592, 43264, 45760, 50336, 53240, 54080, 59488, 62920, 69212, 74360, 77440, 81796, 85184, 86515, 91520, 100672, 102245, 106480, 108160, 118976, 125840, 138424, 148720, 154880, 163592, 170368, 173030, 183040, 201344, 204490, 212960, 216320, 224939, 237952, 251680, 276848, 297440, 327184, 340736, 346060, 402688, 408980, 425920, 449878, 475904, 503360, 553696, 594880, 654368, 692120, 817960, 851840, 899756, 1006720, 1107392, 1124695, 1189760, 1308736, 1384240, 1635920, 1703680, 1799512, 2013440, 2214784, 2249390, 2379520, 2617472, 2768480, 3271840, 3599024, 4429568, 4498780, 5234944, 5536960, 6543680, 7198048, 8997560, 11073920, 13087360, 14396096, 17995120, 22147840, 26174720, 28792192, 35990240, 57584384, 71980480, 143960960, 287921920]

約数ペア:

[(1, 287921920), (2, 143960960), (4, 71980480), (5, 57584384), (8, 35990240), (10, 28792192), (11, 26174720), (13, 22147840), (16, 17995120), (20, 14396096), (22, 13087360), (26, 11073920), (32, 8997560), (40, 7198048), (44, 6543680), (52, 5536960), (55, 5234944), (64, 4498780), (65, 4429568), (80, 3599024), (88, 3271840), (104, 2768480), (110, 2617472), (121, 2379520), (128, 2249390), (130, 2214784), (143, 2013440), (160, 1799512), (169, 1703680), (176, 1635920), (208, 1384240), (220, 1308736), (242, 1189760), (256, 1124695), (260, 1107392), (286, 1006720), (320, 899756), (338, 851840), (352, 817960), (416, 692120), (440, 654368), (484, 594880), (520, 553696), (572, 503360), (605, 475904), (640, 449878), (676, 425920), (704, 408980), (715, 402688), (832, 346060), (845, 340736), (880, 327184), (968, 297440), (1040, 276848), (1144, 251680), (1210, 237952), (1280, 224939), (1331, 216320), (1352, 212960), (1408, 204490), (1430, 201344), (1573, 183040), (1664, 173030), (1690, 170368), (1760, 163592), (1859, 154880), (1936, 148720), (2080, 138424), (2288, 125840), (2420, 118976), (2662, 108160), (2704, 106480), (2816, 102245), (2860, 100672), (3146, 91520), (3328, 86515), (3380, 85184), (3520, 81796), (3718, 77440), (3872, 74360), (4160, 69212), (4576, 62920), (4840, 59488), (5324, 54080), (5408, 53240), (5720, 50336), (6292, 45760), (6655, 43264), (6760, 42592), (7040, 40898), (7436, 38720), (7744, 37180), (7865, 36608), (8320, 34606), (9152, 31460), (9295, 30976), (9680, 29744), (10648, 27040), (10816, 26620), (11440, 25168), (12584, 22880), (13310, 21632), (13520, 21296), (14080, 20449), (14872, 19360), (15488, 18590), (15730, 18304), (16640, 17303)]