20179958980

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{683}}^1\times {\mathrm{7499}}^1$

素因数の和:8388

約数の個数: 48

約数和(自身を含む): 42661080000

約数和(自身を除く): 22481121020

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 683, 788, 985, 1366, 1970, 2732, 3415, 3940, 6830, 7499, 13660, 14998, 29996, 37495, 74990, 134551, 149980, 269102, 538204, 672755, 1345510, 1477303, 2691020, 2954606, 5121817, 5909212, 7386515, 10243634, 14773030, 20487268, 25609085, 29546060, 51218170, 102436340, 1008997949, 2017995898, 4035991796, 5044989745, 10089979490, 20179958980]

約数ペア:

[(1, 20179958980), (2, 10089979490), (4, 5044989745), (5, 4035991796), (10, 2017995898), (20, 1008997949), (197, 102436340), (394, 51218170), (683, 29546060), (788, 25609085), (985, 20487268), (1366, 14773030), (1970, 10243634), (2732, 7386515), (3415, 5909212), (3940, 5121817), (6830, 2954606), (7499, 2691020), (13660, 1477303), (14998, 1345510), (29996, 672755), (37495, 538204), (74990, 269102), (134551, 149980)]