25122860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1291}}^1$

素因数の和:1446

約数の個数: 48

約数和(自身を含む): 60775680

約数和(自身を除く): 35652820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1291, 1390, 1946, 2582, 2780, 3892, 4865, 5164, 6455, 9037, 9730, 12910, 18074, 19460, 25820, 36148, 45185, 90370, 179449, 180740, 358898, 717796, 897245, 1256143, 1794490, 2512286, 3588980, 5024572, 6280715, 12561430, 25122860]

約数ペア:

[(1, 25122860), (2, 12561430), (4, 6280715), (5, 5024572), (7, 3588980), (10, 2512286), (14, 1794490), (20, 1256143), (28, 897245), (35, 717796), (70, 358898), (139, 180740), (140, 179449), (278, 90370), (556, 45185), (695, 36148), (973, 25820), (1291, 19460), (1390, 18074), (1946, 12910), (2582, 9730), (2780, 9037), (3892, 6455), (4865, 5164)]