252575980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1\times {\mathrm{577}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 544753440

約数和(自身を除く): 292177460

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 509, 577, 860, 1018, 1154, 2036, 2308, 2545, 2885, 5090, 5770, 10180, 11540, 21887, 24811, 43774, 49622, 87548, 99244, 109435, 124055, 218870, 248110, 293693, 437740, 496220, 587386, 1174772, 1468465, 2936930, 5873860, 12628799, 25257598, 50515196, 63143995, 126287990, 252575980]

約数ペア:

[(1, 252575980), (2, 126287990), (4, 63143995), (5, 50515196), (10, 25257598), (20, 12628799), (43, 5873860), (86, 2936930), (172, 1468465), (215, 1174772), (430, 587386), (509, 496220), (577, 437740), (860, 293693), (1018, 248110), (1154, 218870), (2036, 124055), (2308, 109435), (2545, 99244), (2885, 87548), (5090, 49622), (5770, 43774), (10180, 24811), (11540, 21887)]