645145291264

素因数分解:

$2^9\times {\mathrm{1260049397}}^1$

素因数の和:1260049415

約数の個数: 20

約数和(自身を含む): 1289030534154

約数和(自身を除く): 643885242890

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1260049397, 2520098794, 5040197588, 10080395176, 20160790352, 40321580704, 80643161408, 161286322816, 322572645632, 645145291264]

約数ペア:

[(1, 645145291264), (2, 322572645632), (4, 161286322816), (8, 80643161408), (16, 40321580704), (32, 20160790352), (64, 10080395176), (128, 5040197588), (256, 2520098794), (512, 1260049397)]