25797140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 56536704

約数和(自身を除く): 30739564

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 355, 370, 491, 710, 740, 982, 1420, 1964, 2455, 2627, 4910, 5254, 9820, 10508, 13135, 18167, 26270, 34861, 36334, 52540, 69722, 72668, 90835, 139444, 174305, 181670, 348610, 363340, 697220, 1289857, 2579714, 5159428, 6449285, 12898570, 25797140]

約数ペア:

[(1, 25797140), (2, 12898570), (4, 6449285), (5, 5159428), (10, 2579714), (20, 1289857), (37, 697220), (71, 363340), (74, 348610), (142, 181670), (148, 174305), (185, 139444), (284, 90835), (355, 72668), (370, 69722), (491, 52540), (710, 36334), (740, 34861), (982, 26270), (1420, 18167), (1964, 13135), (2455, 10508), (2627, 9820), (4910, 5254)]