19789160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15959}}^1$

素因数の和:16001

約数の個数: 32

約数和(自身を含む): 45964800

約数和(自身を除く): 26175640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15959, 31918, 63836, 79795, 127672, 159590, 319180, 494729, 638360, 989458, 1978916, 2473645, 3957832, 4947290, 9894580, 19789160]

約数ペア:

[(1, 19789160), (2, 9894580), (4, 4947290), (5, 3957832), (8, 2473645), (10, 1978916), (20, 989458), (31, 638360), (40, 494729), (62, 319180), (124, 159590), (155, 127672), (248, 79795), (310, 63836), (620, 31918), (1240, 15959)]