81260416

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{33413}}^1$

素因数の和:33446

約数の個数: 32

約数和(自身を含む): 170411400

約数和(自身を除く): 89150984

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 33413, 66826, 133652, 267304, 534608, 634847, 1069216, 1269694, 2138432, 2539388, 4276864, 5078776, 10157552, 20315104, 40630208, 81260416]

約数ペア:

[(1, 81260416), (2, 40630208), (4, 20315104), (8, 10157552), (16, 5078776), (19, 4276864), (32, 2539388), (38, 2138432), (64, 1269694), (76, 1069216), (128, 634847), (152, 534608), (304, 267304), (608, 133652), (1216, 66826), (2432, 33413)]