64807460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{3853}}^1$

素因数の和:3920

約数の個数: 36

約数和(自身を含む): 140987028

約数和(自身を除く): 76179568

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 3364, 3853, 4205, 7706, 8410, 15412, 16820, 19265, 38530, 77060, 111737, 223474, 446948, 558685, 1117370, 2234740, 3240373, 6480746, 12961492, 16201865, 32403730, 64807460]

約数ペア:

[(1, 64807460), (2, 32403730), (4, 16201865), (5, 12961492), (10, 6480746), (20, 3240373), (29, 2234740), (58, 1117370), (116, 558685), (145, 446948), (290, 223474), (580, 111737), (841, 77060), (1682, 38530), (3364, 19265), (3853, 16820), (4205, 15412), (7706, 8410)]