1290349280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:913

約数の個数: 192

約数和(自身を含む): 3579448320

約数和(自身を除く): 2289099040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 47, 55, 76, 80, 88, 94, 95, 110, 152, 160, 176, 188, 190, 209, 220, 235, 304, 352, 376, 380, 418, 440, 470, 517, 608, 752, 760, 821, 836, 880, 893, 940, 1034, 1045, 1504, 1520, 1642, 1672, 1760, 1786, 1880, 2068, 2090, 2585, 3040, 3284, 3344, 3572, 3760, 4105, 4136, 4180, 4465, 5170, 6568, 6688, 7144, 7520, 8210, 8272, 8360, 8930, 9031, 9823, 10340, 13136, 14288, 15599, 16420, 16544, 16720, 17860, 18062, 19646, 20680, 26272, 28576, 31198, 32840, 33440, 35720, 36124, 38587, 39292, 41360, 45155, 49115, 62396, 65680, 71440, 72248, 77174, 77995, 78584, 82720, 90310, 98230, 124792, 131360, 142880, 144496, 154348, 155990, 157168, 171589, 180620, 192935, 196460, 249584, 288992, 308696, 311980, 314336, 343178, 361240, 385870, 392920, 424457, 499168, 617392, 623960, 686356, 722480, 733153, 771740, 785840, 848914, 857945, 1234784, 1247920, 1372712, 1444960, 1466306, 1543480, 1571680, 1697828, 1715890, 2122285, 2495840, 2745424, 2932612, 3086960, 3395656, 3431780, 3665765, 4244570, 5490848, 5865224, 6173920, 6791312, 6863560, 7331530, 8064683, 8489140, 11730448, 13582624, 13727120, 14663060, 16129366, 16978280, 23460896, 27454240, 29326120, 32258732, 33956560, 40323415, 58652240, 64517464, 67913120, 80646830, 117304480, 129034928, 161293660, 258069856, 322587320, 645174640, 1290349280]

約数ペア:

[(1, 1290349280), (2, 645174640), (4, 322587320), (5, 258069856), (8, 161293660), (10, 129034928), (11, 117304480), (16, 80646830), (19, 67913120), (20, 64517464), (22, 58652240), (32, 40323415), (38, 33956560), (40, 32258732), (44, 29326120), (47, 27454240), (55, 23460896), (76, 16978280), (80, 16129366), (88, 14663060), (94, 13727120), (95, 13582624), (110, 11730448), (152, 8489140), (160, 8064683), (176, 7331530), (188, 6863560), (190, 6791312), (209, 6173920), (220, 5865224), (235, 5490848), (304, 4244570), (352, 3665765), (376, 3431780), (380, 3395656), (418, 3086960), (440, 2932612), (470, 2745424), (517, 2495840), (608, 2122285), (752, 1715890), (760, 1697828), (821, 1571680), (836, 1543480), (880, 1466306), (893, 1444960), (940, 1372712), (1034, 1247920), (1045, 1234784), (1504, 857945), (1520, 848914), (1642, 785840), (1672, 771740), (1760, 733153), (1786, 722480), (1880, 686356), (2068, 623960), (2090, 617392), (2585, 499168), (3040, 424457), (3284, 392920), (3344, 385870), (3572, 361240), (3760, 343178), (4105, 314336), (4136, 311980), (4180, 308696), (4465, 288992), (5170, 249584), (6568, 196460), (6688, 192935), (7144, 180620), (7520, 171589), (8210, 157168), (8272, 155990), (8360, 154348), (8930, 144496), (9031, 142880), (9823, 131360), (10340, 124792), (13136, 98230), (14288, 90310), (15599, 82720), (16420, 78584), (16544, 77995), (16720, 77174), (17860, 72248), (18062, 71440), (19646, 65680), (20680, 62396), (26272, 49115), (28576, 45155), (31198, 41360), (32840, 39292), (33440, 38587), (35720, 36124)]