1639842340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2644907}}^1$

素因数の和:2644947

約数の個数: 24

約数和(自身を含む): 3554756352

約数和(自身を除く): 1914914012

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2644907, 5289814, 10579628, 13224535, 26449070, 52898140, 81992117, 163984234, 327968468, 409960585, 819921170, 1639842340]

約数ペア:

[(1, 1639842340), (2, 819921170), (4, 409960585), (5, 327968468), (10, 163984234), (20, 81992117), (31, 52898140), (62, 26449070), (124, 13224535), (155, 10579628), (310, 5289814), (620, 2644907)]