25581100

素因数分解:

$2^2\times 5^2\times {\mathrm{491}}^1\times {\mathrm{521}}^1$

素因数の和:1026

約数の個数: 36

約数和(自身を含む): 55730808

約数和(自身を除く): 30149708

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 491, 521, 982, 1042, 1964, 2084, 2455, 2605, 4910, 5210, 9820, 10420, 12275, 13025, 24550, 26050, 49100, 52100, 255811, 511622, 1023244, 1279055, 2558110, 5116220, 6395275, 12790550, 25581100]

約数ペア:

[(1, 25581100), (2, 12790550), (4, 6395275), (5, 5116220), (10, 2558110), (20, 1279055), (25, 1023244), (50, 511622), (100, 255811), (491, 52100), (521, 49100), (982, 26050), (1042, 24550), (1964, 13025), (2084, 12275), (2455, 10420), (2605, 9820), (4910, 5210)]