1678340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2707}}^1$

素因数の和:2747

約数の個数: 24

約数和(自身を含む): 3639552

約数和(自身を除く): 1961212

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2707, 5414, 10828, 13535, 27070, 54140, 83917, 167834, 335668, 419585, 839170, 1678340]

約数ペア:

[(1, 1678340), (2, 839170), (4, 419585), (5, 335668), (10, 167834), (20, 83917), (31, 54140), (62, 27070), (124, 13535), (155, 10828), (310, 5414), (620, 2707)]