640476226

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{1913}}^1$

素因数の和:2170

約数の個数: 32

約数和(自身を含む): 1054690560

約数和(自身を除く): 414214334

約数列:

[1, 2, 13, 26, 79, 158, 163, 326, 1027, 1913, 2054, 2119, 3826, 4238, 12877, 24869, 25754, 49738, 151127, 167401, 302254, 311819, 334802, 623638, 1964651, 3929302, 4053647, 8107294, 24633701, 49267402, 320238113, 640476226]

約数ペア:

[(1, 640476226), (2, 320238113), (13, 49267402), (26, 24633701), (79, 8107294), (158, 4053647), (163, 3929302), (326, 1964651), (1027, 623638), (1913, 334802), (2054, 311819), (2119, 302254), (3826, 167401), (4238, 151127), (12877, 49738), (24869, 25754)]