641727240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:580

約数の個数: 256

約数和(自身を含む): 2419200000

約数和(自身を除く): 1777472760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 199, 210, 220, 231, 264, 280, 308, 330, 349, 385, 398, 420, 440, 462, 597, 616, 660, 698, 770, 796, 840, 924, 995, 1047, 1155, 1194, 1320, 1393, 1396, 1540, 1592, 1745, 1848, 1990, 2094, 2189, 2310, 2388, 2443, 2786, 2792, 2985, 3080, 3490, 3839, 3980, 4179, 4188, 4378, 4620, 4776, 4886, 5235, 5572, 5970, 6567, 6965, 6980, 7329, 7678, 7960, 8358, 8376, 8756, 9240, 9772, 10470, 10945, 11144, 11517, 11940, 12215, 13134, 13930, 13960, 14658, 15323, 15356, 16716, 17512, 19195, 19544, 20895, 20940, 21890, 23034, 23880, 24430, 26268, 26873, 27860, 29316, 30646, 30712, 32835, 33432, 36645, 38390, 41790, 41880, 43780, 45969, 46068, 48860, 52536, 53746, 55720, 57585, 58632, 61292, 65670, 69451, 73290, 76615, 76780, 80619, 83580, 87560, 91938, 92136, 97720, 107492, 115170, 122584, 131340, 134365, 138902, 146580, 153230, 153560, 161238, 167160, 183876, 208353, 214984, 229845, 230340, 262680, 268730, 277804, 293160, 306460, 322476, 347255, 367752, 403095, 416706, 459690, 460680, 486157, 537460, 555608, 612920, 644952, 694510, 763961, 806190, 833412, 919380, 972314, 1041765, 1074920, 1389020, 1458471, 1527922, 1612380, 1666824, 1838760, 1944628, 2083530, 2291883, 2430785, 2778040, 2916942, 3055844, 3224760, 3819805, 3889256, 4167060, 4583766, 4861570, 5347727, 5833884, 6111688, 7292355, 7639610, 8334120, 9167532, 9723140, 10695454, 11459415, 11667768, 14584710, 15279220, 16043181, 18335064, 19446280, 21390908, 22918830, 26738635, 29169420, 30558440, 32086362, 42781816, 45837660, 53477270, 58338840, 64172724, 80215905, 91675320, 106954540, 128345448, 160431810, 213909080, 320863620, 641727240]

約数ペア:

[(1, 641727240), (2, 320863620), (3, 213909080), (4, 160431810), (5, 128345448), (6, 106954540), (7, 91675320), (8, 80215905), (10, 64172724), (11, 58338840), (12, 53477270), (14, 45837660), (15, 42781816), (20, 32086362), (21, 30558440), (22, 29169420), (24, 26738635), (28, 22918830), (30, 21390908), (33, 19446280), (35, 18335064), (40, 16043181), (42, 15279220), (44, 14584710), (55, 11667768), (56, 11459415), (60, 10695454), (66, 9723140), (70, 9167532), (77, 8334120), (84, 7639610), (88, 7292355), (105, 6111688), (110, 5833884), (120, 5347727), (132, 4861570), (140, 4583766), (154, 4167060), (165, 3889256), (168, 3819805), (199, 3224760), (210, 3055844), (220, 2916942), (231, 2778040), (264, 2430785), (280, 2291883), (308, 2083530), (330, 1944628), (349, 1838760), (385, 1666824), (398, 1612380), (420, 1527922), (440, 1458471), (462, 1389020), (597, 1074920), (616, 1041765), (660, 972314), (698, 919380), (770, 833412), (796, 806190), (840, 763961), (924, 694510), (995, 644952), (1047, 612920), (1155, 555608), (1194, 537460), (1320, 486157), (1393, 460680), (1396, 459690), (1540, 416706), (1592, 403095), (1745, 367752), (1848, 347255), (1990, 322476), (2094, 306460), (2189, 293160), (2310, 277804), (2388, 268730), (2443, 262680), (2786, 230340), (2792, 229845), (2985, 214984), (3080, 208353), (3490, 183876), (3839, 167160), (3980, 161238), (4179, 153560), (4188, 153230), (4378, 146580), (4620, 138902), (4776, 134365), (4886, 131340), (5235, 122584), (5572, 115170), (5970, 107492), (6567, 97720), (6965, 92136), (6980, 91938), (7329, 87560), (7678, 83580), (7960, 80619), (8358, 76780), (8376, 76615), (8756, 73290), (9240, 69451), (9772, 65670), (10470, 61292), (10945, 58632), (11144, 57585), (11517, 55720), (11940, 53746), (12215, 52536), (13134, 48860), (13930, 46068), (13960, 45969), (14658, 43780), (15323, 41880), (15356, 41790), (16716, 38390), (17512, 36645), (19195, 33432), (19544, 32835), (20895, 30712), (20940, 30646), (21890, 29316), (23034, 27860), (23880, 26873), (24430, 26268)]