20896290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2939}}^1$

素因数の和:3031

約数の個数: 48

約数和(自身を含む): 55036800

約数和(自身を除く): 34140510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 79, 90, 158, 237, 395, 474, 711, 790, 1185, 1422, 2370, 2939, 3555, 5878, 7110, 8817, 14695, 17634, 26451, 29390, 44085, 52902, 88170, 132255, 232181, 264510, 464362, 696543, 1160905, 1393086, 2089629, 2321810, 3482715, 4179258, 6965430, 10448145, 20896290]

約数ペア:

[(1, 20896290), (2, 10448145), (3, 6965430), (5, 4179258), (6, 3482715), (9, 2321810), (10, 2089629), (15, 1393086), (18, 1160905), (30, 696543), (45, 464362), (79, 264510), (90, 232181), (158, 132255), (237, 88170), (395, 52902), (474, 44085), (711, 29390), (790, 26451), (1185, 17634), (1422, 14695), (2370, 8817), (2939, 7110), (3555, 5878)]