20633220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1451}}^1$

素因数の和:1545

約数の個数: 72

約数和(自身を含む): 63423360

約数和(自身を除く): 42790140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1451, 1580, 2370, 2844, 2902, 3555, 4353, 4740, 5804, 7110, 7255, 8706, 13059, 14220, 14510, 17412, 21765, 26118, 29020, 43530, 52236, 65295, 87060, 114629, 130590, 229258, 261180, 343887, 458516, 573145, 687774, 1031661, 1146290, 1375548, 1719435, 2063322, 2292580, 3438870, 4126644, 5158305, 6877740, 10316610, 20633220]

約数ペア:

[(1, 20633220), (2, 10316610), (3, 6877740), (4, 5158305), (5, 4126644), (6, 3438870), (9, 2292580), (10, 2063322), (12, 1719435), (15, 1375548), (18, 1146290), (20, 1031661), (30, 687774), (36, 573145), (45, 458516), (60, 343887), (79, 261180), (90, 229258), (158, 130590), (180, 114629), (237, 87060), (316, 65295), (395, 52236), (474, 43530), (711, 29020), (790, 26118), (948, 21765), (1185, 17412), (1422, 14510), (1451, 14220), (1580, 13059), (2370, 8706), (2844, 7255), (2902, 7110), (3555, 5804), (4353, 4740)]