72459220

素因数分解:

$2^2\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{3209}}^1$

素因数の和:4347

約数の個数: 24

約数和(自身を含む): 152346600

約数和(自身を除く): 79887380

約数列:

[1, 2, 4, 5, 10, 20, 1129, 2258, 3209, 4516, 5645, 6418, 11290, 12836, 16045, 22580, 32090, 64180, 3622961, 7245922, 14491844, 18114805, 36229610, 72459220]

約数ペア:

[(1, 72459220), (2, 36229610), (4, 18114805), (5, 14491844), (10, 7245922), (20, 3622961), (1129, 64180), (2258, 32090), (3209, 22580), (4516, 16045), (5645, 12836), (6418, 11290)]