26789980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3137}}^1$

素因数の和:3214

約数の個数: 48

約数和(自身を含む): 65370816

約数和(自身を除く): 38580836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 3137, 4270, 6274, 8540, 12548, 15685, 21959, 31370, 43918, 62740, 87836, 109795, 191357, 219590, 382714, 439180, 765428, 956785, 1339499, 1913570, 2678998, 3827140, 5357996, 6697495, 13394990, 26789980]

約数ペア:

[(1, 26789980), (2, 13394990), (4, 6697495), (5, 5357996), (7, 3827140), (10, 2678998), (14, 1913570), (20, 1339499), (28, 956785), (35, 765428), (61, 439180), (70, 382714), (122, 219590), (140, 191357), (244, 109795), (305, 87836), (427, 62740), (610, 43918), (854, 31370), (1220, 21959), (1708, 15685), (2135, 12548), (3137, 8540), (4270, 6274)]