20168163620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1030039}}^1$

素因数の和:1030148

約数の個数: 48

約数和(自身を含む): 46722614400

約数和(自身を除く): 26554450780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 1030039, 2060078, 4120156, 5150195, 10300390, 11330429, 20600780, 22660858, 45321716, 56652145, 91673471, 113304290, 183346942, 226608580, 366693884, 458367355, 916734710, 1008408181, 1833469420, 2016816362, 4033632724, 5042040905, 10084081810, 20168163620]

約数ペア:

[(1, 20168163620), (2, 10084081810), (4, 5042040905), (5, 4033632724), (10, 2016816362), (11, 1833469420), (20, 1008408181), (22, 916734710), (44, 458367355), (55, 366693884), (89, 226608580), (110, 183346942), (178, 113304290), (220, 91673471), (356, 56652145), (445, 45321716), (890, 22660858), (979, 20600780), (1780, 11330429), (1958, 10300390), (3916, 5150195), (4895, 4120156), (9790, 2060078), (19580, 1030039)]