64434320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42391}}^1$

素因数の和:42423

約数の個数: 40

約数和(自身を含む): 157698240

約数和(自身を除く): 93263920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 42391, 84782, 169564, 211955, 339128, 423910, 678256, 805429, 847820, 1610858, 1695640, 3221716, 3391280, 4027145, 6443432, 8054290, 12886864, 16108580, 32217160, 64434320]

約数ペア:

[(1, 64434320), (2, 32217160), (4, 16108580), (5, 12886864), (8, 8054290), (10, 6443432), (16, 4027145), (19, 3391280), (20, 3221716), (38, 1695640), (40, 1610858), (76, 847820), (80, 805429), (95, 678256), (152, 423910), (190, 339128), (304, 211955), (380, 169564), (760, 84782), (1520, 42391)]