64212850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{443}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 129491712

約数和(自身を除く): 65278862

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 223, 325, 443, 446, 650, 886, 1115, 2215, 2230, 2899, 4430, 5575, 5759, 5798, 11075, 11150, 11518, 14495, 22150, 28795, 28990, 57590, 72475, 98789, 143975, 144950, 197578, 287950, 493945, 987890, 1284257, 2469725, 2568514, 4939450, 6421285, 12842570, 32106425, 64212850]

約数ペア:

[(1, 64212850), (2, 32106425), (5, 12842570), (10, 6421285), (13, 4939450), (25, 2568514), (26, 2469725), (50, 1284257), (65, 987890), (130, 493945), (223, 287950), (325, 197578), (443, 144950), (446, 143975), (650, 98789), (886, 72475), (1115, 57590), (2215, 28990), (2230, 28795), (2899, 22150), (4430, 14495), (5575, 11518), (5759, 11150), (5798, 11075)]