250640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:267

約数の個数: 40

約数和(自身を含む): 630168

約数和(自身を除く): 379528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 241, 260, 482, 520, 964, 1040, 1205, 1928, 2410, 3133, 3856, 4820, 6266, 9640, 12532, 15665, 19280, 25064, 31330, 50128, 62660, 125320, 250640]

約数ペア:

[(1, 250640), (2, 125320), (4, 62660), (5, 50128), (8, 31330), (10, 25064), (13, 19280), (16, 15665), (20, 12532), (26, 9640), (40, 6266), (52, 4820), (65, 3856), (80, 3133), (104, 2410), (130, 1928), (208, 1205), (241, 1040), (260, 964), (482, 520)]