28087240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22651}}^1$

素因数の和:22693

約数の個数: 32

約数和(自身を含む): 65237760

約数和(自身を除く): 37150520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 22651, 45302, 90604, 113255, 181208, 226510, 453020, 702181, 906040, 1404362, 2808724, 3510905, 5617448, 7021810, 14043620, 28087240]

約数ペア:

[(1, 28087240), (2, 14043620), (4, 7021810), (5, 5617448), (8, 3510905), (10, 2808724), (20, 1404362), (31, 906040), (40, 702181), (62, 453020), (124, 226510), (155, 181208), (248, 113255), (310, 90604), (620, 45302), (1240, 22651)]