257465980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{3079}}^1$

素因数の和:3238

約数の個数: 48

約数和(自身を含む): 560387520

約数和(自身を除く): 302921540

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 113, 148, 185, 226, 370, 452, 565, 740, 1130, 2260, 3079, 4181, 6158, 8362, 12316, 15395, 16724, 20905, 30790, 41810, 61580, 83620, 113923, 227846, 347927, 455692, 569615, 695854, 1139230, 1391708, 1739635, 2278460, 3479270, 6958540, 12873299, 25746598, 51493196, 64366495, 128732990, 257465980]

約数ペア:

[(1, 257465980), (2, 128732990), (4, 64366495), (5, 51493196), (10, 25746598), (20, 12873299), (37, 6958540), (74, 3479270), (113, 2278460), (148, 1739635), (185, 1391708), (226, 1139230), (370, 695854), (452, 569615), (565, 455692), (740, 347927), (1130, 227846), (2260, 113923), (3079, 83620), (4181, 61580), (6158, 41810), (8362, 30790), (12316, 20905), (15395, 16724)]