20187677960

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1170979}}^1$

素因数の和:1171421

約数の個数: 32

約数和(自身を含む): 45527702400

約数和(自身を除く): 25340024440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 8620, 17240, 1170979, 2341958, 4683916, 5854895, 9367832, 11709790, 23419580, 46839160, 504691949, 1009383898, 2018767796, 2523459745, 4037535592, 5046919490, 10093838980, 20187677960]

約数ペア:

[(1, 20187677960), (2, 10093838980), (4, 5046919490), (5, 4037535592), (8, 2523459745), (10, 2018767796), (20, 1009383898), (40, 504691949), (431, 46839160), (862, 23419580), (1724, 11709790), (2155, 9367832), (3448, 5854895), (4310, 4683916), (8620, 2341958), (17240, 1170979)]