64754320

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2293}}^1$

素因数の和:2659

約数の個数: 40

約数和(自身を含む): 151046136

約数和(自身を除く): 86291816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 1412, 1765, 2293, 2824, 3530, 4586, 5648, 7060, 9172, 11465, 14120, 18344, 22930, 28240, 36688, 45860, 91720, 183440, 809429, 1618858, 3237716, 4047145, 6475432, 8094290, 12950864, 16188580, 32377160, 64754320]

約数ペア:

[(1, 64754320), (2, 32377160), (4, 16188580), (5, 12950864), (8, 8094290), (10, 6475432), (16, 4047145), (20, 3237716), (40, 1618858), (80, 809429), (353, 183440), (706, 91720), (1412, 45860), (1765, 36688), (2293, 28240), (2824, 22930), (3530, 18344), (4586, 14120), (5648, 11465), (7060, 9172)]