621920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1$

素因数の和:64

約数の個数: 72

約数和(自身を含む): 1660176

約数和(自身を除く): 1038256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 169, 184, 208, 230, 260, 299, 338, 368, 416, 460, 520, 598, 676, 736, 845, 920, 1040, 1196, 1352, 1495, 1690, 1840, 2080, 2392, 2704, 2990, 3380, 3680, 3887, 4784, 5408, 5980, 6760, 7774, 9568, 11960, 13520, 15548, 19435, 23920, 27040, 31096, 38870, 47840, 62192, 77740, 124384, 155480, 310960, 621920]

約数ペア:

[(1, 621920), (2, 310960), (4, 155480), (5, 124384), (8, 77740), (10, 62192), (13, 47840), (16, 38870), (20, 31096), (23, 27040), (26, 23920), (32, 19435), (40, 15548), (46, 13520), (52, 11960), (65, 9568), (80, 7774), (92, 6760), (104, 5980), (115, 5408), (130, 4784), (160, 3887), (169, 3680), (184, 3380), (208, 2990), (230, 2704), (260, 2392), (299, 2080), (338, 1840), (368, 1690), (416, 1495), (460, 1352), (520, 1196), (598, 1040), (676, 920), (736, 845)]