64730020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{87473}}^1$

素因数の和:87519

約数の個数: 24

約数和(自身を含む): 139608504

約数和(自身を除く): 74878484

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 87473, 174946, 349892, 437365, 874730, 1749460, 3236501, 6473002, 12946004, 16182505, 32365010, 64730020]

約数ペア:

[(1, 64730020), (2, 32365010), (4, 16182505), (5, 12946004), (10, 6473002), (20, 3236501), (37, 1749460), (74, 874730), (148, 437365), (185, 349892), (370, 174946), (740, 87473)]