410800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:110

約数の個数: 60

約数和(自身を含む): 1076320

約数和(自身を除く): 665520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 79, 80, 100, 104, 130, 158, 200, 208, 260, 316, 325, 395, 400, 520, 632, 650, 790, 1027, 1040, 1264, 1300, 1580, 1975, 2054, 2600, 3160, 3950, 4108, 5135, 5200, 6320, 7900, 8216, 10270, 15800, 16432, 20540, 25675, 31600, 41080, 51350, 82160, 102700, 205400, 410800]

約数ペア:

[(1, 410800), (2, 205400), (4, 102700), (5, 82160), (8, 51350), (10, 41080), (13, 31600), (16, 25675), (20, 20540), (25, 16432), (26, 15800), (40, 10270), (50, 8216), (52, 7900), (65, 6320), (79, 5200), (80, 5135), (100, 4108), (104, 3950), (130, 3160), (158, 2600), (200, 2054), (208, 1975), (260, 1580), (316, 1300), (325, 1264), (395, 1040), (400, 1027), (520, 790), (632, 650)]