2258440

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 5132160

約数和(自身を除く): 2873720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 431, 524, 655, 862, 1048, 1310, 1724, 2155, 2620, 3448, 4310, 5240, 8620, 17240, 56461, 112922, 225844, 282305, 451688, 564610, 1129220, 2258440]

約数ペア:

[(1, 2258440), (2, 1129220), (4, 564610), (5, 451688), (8, 282305), (10, 225844), (20, 112922), (40, 56461), (131, 17240), (262, 8620), (431, 5240), (524, 4310), (655, 3448), (862, 2620), (1048, 2155), (1310, 1724)]