20628585

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1049}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 39312000

約数和(自身を除く): 18683415

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 115, 171, 207, 285, 345, 437, 855, 1035, 1049, 1311, 2185, 3147, 3933, 5245, 6555, 9441, 15735, 19665, 19931, 24127, 47205, 59793, 72381, 99655, 120635, 179379, 217143, 298965, 361905, 458413, 896895, 1085715, 1375239, 2292065, 4125717, 6876195, 20628585]

約数ペア:

[(1, 20628585), (3, 6876195), (5, 4125717), (9, 2292065), (15, 1375239), (19, 1085715), (23, 896895), (45, 458413), (57, 361905), (69, 298965), (95, 217143), (115, 179379), (171, 120635), (207, 99655), (285, 72381), (345, 59793), (437, 47205), (855, 24127), (1035, 19931), (1049, 19665), (1311, 15735), (2185, 9441), (3147, 6555), (3933, 5245)]