65644520

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{22481}}^1$

素因数の和:22565

約数の個数: 32

約数和(自身を含む): 149730120

約数和(自身を除く): 84085600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 22481, 44962, 89924, 112405, 179848, 224810, 449620, 899240, 1641113, 3282226, 6564452, 8205565, 13128904, 16411130, 32822260, 65644520]

約数ペア:

[(1, 65644520), (2, 32822260), (4, 16411130), (5, 13128904), (8, 8205565), (10, 6564452), (20, 3282226), (40, 1641113), (73, 899240), (146, 449620), (292, 224810), (365, 179848), (584, 112405), (730, 89924), (1460, 44962), (2920, 22481)]