64676740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1231}}^1$

素因数の和:1348

約数の個数: 48

約数和(自身を含む): 141571584

約数和(自身を除く): 76894844

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 355, 370, 710, 740, 1231, 1420, 2462, 2627, 4924, 5254, 6155, 10508, 12310, 13135, 24620, 26270, 45547, 52540, 87401, 91094, 174802, 182188, 227735, 349604, 437005, 455470, 874010, 910940, 1748020, 3233837, 6467674, 12935348, 16169185, 32338370, 64676740]

約数ペア:

[(1, 64676740), (2, 32338370), (4, 16169185), (5, 12935348), (10, 6467674), (20, 3233837), (37, 1748020), (71, 910940), (74, 874010), (142, 455470), (148, 437005), (185, 349604), (284, 227735), (355, 182188), (370, 174802), (710, 91094), (740, 87401), (1231, 52540), (1420, 45547), (2462, 26270), (2627, 24620), (4924, 13135), (5254, 12310), (6155, 10508)]