80939140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{130547}}^1$

素因数の和:130587

約数の個数: 24

約数和(自身を含む): 175456512

約数和(自身を除く): 94517372

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 130547, 261094, 522188, 652735, 1305470, 2610940, 4046957, 8093914, 16187828, 20234785, 40469570, 80939140]

約数ペア:

[(1, 80939140), (2, 40469570), (4, 20234785), (5, 16187828), (10, 8093914), (20, 4046957), (31, 2610940), (62, 1305470), (124, 652735), (155, 522188), (310, 261094), (620, 130547)]