20249060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4099}}^1$

素因数の和:4140

約数の個数: 48

約数和(自身を含む): 48216000

約数和(自身を除く): 27966940

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4099, 4940, 8198, 16396, 20495, 40990, 53287, 77881, 81980, 106574, 155762, 213148, 266435, 311524, 389405, 532870, 778810, 1012453, 1065740, 1557620, 2024906, 4049812, 5062265, 10124530, 20249060]

約数ペア:

[(1, 20249060), (2, 10124530), (4, 5062265), (5, 4049812), (10, 2024906), (13, 1557620), (19, 1065740), (20, 1012453), (26, 778810), (38, 532870), (52, 389405), (65, 311524), (76, 266435), (95, 213148), (130, 155762), (190, 106574), (247, 81980), (260, 77881), (380, 53287), (494, 40990), (988, 20495), (1235, 16396), (2470, 8198), (4099, 4940)]