20188040

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1171}}^1$

素因数の和:1613

約数の個数: 32

約数和(自身を含む): 45567360

約数和(自身を除く): 25379320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1171, 1724, 2155, 2342, 3448, 4310, 4684, 5855, 8620, 9368, 11710, 17240, 23420, 46840, 504701, 1009402, 2018804, 2523505, 4037608, 5047010, 10094020, 20188040]

約数ペア:

[(1, 20188040), (2, 10094020), (4, 5047010), (5, 4037608), (8, 2523505), (10, 2018804), (20, 1009402), (40, 504701), (431, 46840), (862, 23420), (1171, 17240), (1724, 11710), (2155, 9368), (2342, 8620), (3448, 5855), (4310, 4684)]