64902820

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{21491}}^1$

素因数の和:21651

約数の個数: 24

約数和(自身を含む): 137204928

約数和(自身を除く): 72302108

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 21491, 42982, 85964, 107455, 214910, 429820, 3245141, 6490282, 12980564, 16225705, 32451410, 64902820]

約数ペア:

[(1, 64902820), (2, 32451410), (4, 16225705), (5, 12980564), (10, 6490282), (20, 3245141), (151, 429820), (302, 214910), (604, 107455), (755, 85964), (1510, 42982), (3020, 21491)]