491479840

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:247

約数の個数: 144

約数和(自身を含む): 1253532672

約数和(自身を除く): 762052832

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 67, 76, 80, 95, 127, 134, 152, 160, 190, 254, 268, 304, 335, 361, 380, 508, 536, 608, 635, 670, 722, 760, 1016, 1072, 1270, 1273, 1340, 1444, 1520, 1805, 2032, 2144, 2413, 2540, 2546, 2680, 2888, 3040, 3610, 4064, 4826, 5080, 5092, 5360, 5776, 6365, 7220, 8509, 9652, 10160, 10184, 10720, 11552, 12065, 12730, 14440, 17018, 19304, 20320, 20368, 24130, 24187, 25460, 28880, 34036, 38608, 40736, 42545, 45847, 48260, 48374, 50920, 57760, 68072, 77216, 85090, 91694, 96520, 96748, 101840, 120935, 136144, 161671, 170180, 183388, 193040, 193496, 203680, 229235, 241870, 272288, 323342, 340360, 366776, 386080, 386992, 458470, 483740, 646684, 680720, 733552, 773984, 808355, 916940, 967480, 1293368, 1361440, 1467104, 1616710, 1833880, 1934960, 2586736, 3071749, 3233420, 3667760, 3869920, 5173472, 6143498, 6466840, 7335520, 12286996, 12933680, 15358745, 24573992, 25867360, 30717490, 49147984, 61434980, 98295968, 122869960, 245739920, 491479840]

約数ペア:

[(1, 491479840), (2, 245739920), (4, 122869960), (5, 98295968), (8, 61434980), (10, 49147984), (16, 30717490), (19, 25867360), (20, 24573992), (32, 15358745), (38, 12933680), (40, 12286996), (67, 7335520), (76, 6466840), (80, 6143498), (95, 5173472), (127, 3869920), (134, 3667760), (152, 3233420), (160, 3071749), (190, 2586736), (254, 1934960), (268, 1833880), (304, 1616710), (335, 1467104), (361, 1361440), (380, 1293368), (508, 967480), (536, 916940), (608, 808355), (635, 773984), (670, 733552), (722, 680720), (760, 646684), (1016, 483740), (1072, 458470), (1270, 386992), (1273, 386080), (1340, 366776), (1444, 340360), (1520, 323342), (1805, 272288), (2032, 241870), (2144, 229235), (2413, 203680), (2540, 193496), (2546, 193040), (2680, 183388), (2888, 170180), (3040, 161671), (3610, 136144), (4064, 120935), (4826, 101840), (5080, 96748), (5092, 96520), (5360, 91694), (5776, 85090), (6365, 77216), (7220, 68072), (8509, 57760), (9652, 50920), (10160, 48374), (10184, 48260), (10720, 45847), (11552, 42545), (12065, 40736), (12730, 38608), (14440, 34036), (17018, 28880), (19304, 25460), (20320, 24187), (20368, 24130)]