90668380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:347

約数の個数: 96

約数和(自身を含む): 221760000

約数和(自身を除く): 131091620

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 109, 110, 190, 199, 209, 218, 220, 380, 398, 418, 436, 545, 796, 836, 995, 1045, 1090, 1199, 1990, 2071, 2090, 2180, 2189, 2398, 3781, 3980, 4142, 4180, 4378, 4796, 5995, 7562, 8284, 8756, 10355, 10945, 11990, 15124, 18905, 20710, 21691, 21890, 22781, 23980, 37810, 41420, 41591, 43382, 43780, 45562, 75620, 83182, 86764, 91124, 108455, 113905, 166364, 207955, 216910, 227810, 238601, 412129, 415910, 433820, 455620, 477202, 824258, 831820, 954404, 1193005, 1648516, 2060645, 2386010, 4121290, 4533419, 4772020, 8242580, 9066838, 18133676, 22667095, 45334190, 90668380]

約数ペア:

[(1, 90668380), (2, 45334190), (4, 22667095), (5, 18133676), (10, 9066838), (11, 8242580), (19, 4772020), (20, 4533419), (22, 4121290), (38, 2386010), (44, 2060645), (55, 1648516), (76, 1193005), (95, 954404), (109, 831820), (110, 824258), (190, 477202), (199, 455620), (209, 433820), (218, 415910), (220, 412129), (380, 238601), (398, 227810), (418, 216910), (436, 207955), (545, 166364), (796, 113905), (836, 108455), (995, 91124), (1045, 86764), (1090, 83182), (1199, 75620), (1990, 45562), (2071, 43780), (2090, 43382), (2180, 41591), (2189, 41420), (2398, 37810), (3781, 23980), (3980, 22781), (4142, 21890), (4180, 21691), (4378, 20710), (4796, 18905), (5995, 15124), (7562, 11990), (8284, 10945), (8756, 10355)]