668405764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1013}}^1\times {\mathrm{12689}}^1$

素因数の和:13719

約数の個数: 24

約数和(自身を含む): 1261030680

約数和(自身を除く): 592624916

約数列:

[1, 2, 4, 13, 26, 52, 1013, 2026, 4052, 12689, 13169, 25378, 26338, 50756, 52676, 164957, 329914, 659828, 12853957, 25707914, 51415828, 167101441, 334202882, 668405764]

約数ペア:

[(1, 668405764), (2, 334202882), (4, 167101441), (13, 51415828), (26, 25707914), (52, 12853957), (1013, 659828), (2026, 329914), (4052, 164957), (12689, 52676), (13169, 50756), (25378, 26338)]