20802338780

素因数分解:

$2^2\times 5^1\times {\mathrm{3889}}^1\times {\mathrm{267451}}^1$

素因数の和:271349

約数の個数: 24

約数和(自身を含む): 43696307760

約数和(自身を除く): 22893968980

約数列:

[1, 2, 4, 5, 10, 20, 3889, 7778, 15556, 19445, 38890, 77780, 267451, 534902, 1069804, 1337255, 2674510, 5349020, 1040116939, 2080233878, 4160467756, 5200584695, 10401169390, 20802338780]

約数ペア:

[(1, 20802338780), (2, 10401169390), (4, 5200584695), (5, 4160467756), (10, 2080233878), (20, 1040116939), (3889, 5349020), (7778, 2674510), (15556, 1337255), (19445, 1069804), (38890, 534902), (77780, 267451)]