64801420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{379}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 139426560

約数和(自身を除く): 74625140

約数列:

[1, 2, 4, 5, 10, 20, 83, 103, 166, 206, 332, 379, 412, 415, 515, 758, 830, 1030, 1516, 1660, 1895, 2060, 3790, 7580, 8549, 17098, 31457, 34196, 39037, 42745, 62914, 78074, 85490, 125828, 156148, 157285, 170980, 195185, 314570, 390370, 629140, 780740, 3240071, 6480142, 12960284, 16200355, 32400710, 64801420]

約数ペア:

[(1, 64801420), (2, 32400710), (4, 16200355), (5, 12960284), (10, 6480142), (20, 3240071), (83, 780740), (103, 629140), (166, 390370), (206, 314570), (332, 195185), (379, 170980), (412, 157285), (415, 156148), (515, 125828), (758, 85490), (830, 78074), (1030, 62914), (1516, 42745), (1660, 39037), (1895, 34196), (2060, 31457), (3790, 17098), (7580, 8549)]