256289408

素因数分解:

$2^7\times {\mathrm{313}}^1\times {\mathrm{6397}}^1$

素因数の和:6724

約数の個数: 32

約数和(自身を含む): 512287860

約数和(自身を除く): 255998452

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 313, 626, 1252, 2504, 5008, 6397, 10016, 12794, 20032, 25588, 40064, 51176, 102352, 204704, 409408, 818816, 2002261, 4004522, 8009044, 16018088, 32036176, 64072352, 128144704, 256289408]

約数ペア:

[(1, 256289408), (2, 128144704), (4, 64072352), (8, 32036176), (16, 16018088), (32, 8009044), (64, 4004522), (128, 2002261), (313, 818816), (626, 409408), (1252, 204704), (2504, 102352), (5008, 51176), (6397, 40064), (10016, 25588), (12794, 20032)]