20462145

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 38568960

約数和(自身を除く): 18106815

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 61, 95, 107, 165, 183, 209, 285, 305, 321, 535, 627, 671, 915, 1045, 1159, 1177, 1605, 2013, 2033, 3135, 3355, 3477, 3531, 5795, 5885, 6099, 6527, 10065, 10165, 12749, 17385, 17655, 19581, 22363, 30495, 32635, 38247, 63745, 67089, 71797, 97905, 111815, 124013, 191235, 215391, 335445, 358985, 372039, 620065, 1076955, 1364143, 1860195, 4092429, 6820715, 20462145]

約数ペア:

[(1, 20462145), (3, 6820715), (5, 4092429), (11, 1860195), (15, 1364143), (19, 1076955), (33, 620065), (55, 372039), (57, 358985), (61, 335445), (95, 215391), (107, 191235), (165, 124013), (183, 111815), (209, 97905), (285, 71797), (305, 67089), (321, 63745), (535, 38247), (627, 32635), (671, 30495), (915, 22363), (1045, 19581), (1159, 17655), (1177, 17385), (1605, 12749), (2013, 10165), (2033, 10065), (3135, 6527), (3355, 6099), (3477, 5885), (3531, 5795)]