51220040

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2971}}^1$

素因数の和:3413

約数の個数: 32

約数和(自身を含む): 115551360

約数和(自身を除く): 64331320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 2971, 3448, 4310, 5942, 8620, 11884, 14855, 17240, 23768, 29710, 59420, 118840, 1280501, 2561002, 5122004, 6402505, 10244008, 12805010, 25610020, 51220040]

約数ペア:

[(1, 51220040), (2, 25610020), (4, 12805010), (5, 10244008), (8, 6402505), (10, 5122004), (20, 2561002), (40, 1280501), (431, 118840), (862, 59420), (1724, 29710), (2155, 23768), (2971, 17240), (3448, 14855), (4310, 11884), (5942, 8620)]