262810640

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{12491}}^1$

素因数の和:12767

約数の個数: 40

約数和(自身を含む): 613407168

約数和(自身を除く): 350596528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 4208, 5260, 10520, 12491, 21040, 24982, 49964, 62455, 99928, 124910, 199856, 249820, 499640, 999280, 3285133, 6570266, 13140532, 16425665, 26281064, 32851330, 52562128, 65702660, 131405320, 262810640]

約数ペア:

[(1, 262810640), (2, 131405320), (4, 65702660), (5, 52562128), (8, 32851330), (10, 26281064), (16, 16425665), (20, 13140532), (40, 6570266), (80, 3285133), (263, 999280), (526, 499640), (1052, 249820), (1315, 199856), (2104, 124910), (2630, 99928), (4208, 62455), (5260, 49964), (10520, 24982), (12491, 21040)]