28717180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 62588736

約数和(自身を除く): 33871556

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 151, 185, 257, 302, 370, 514, 604, 740, 755, 1028, 1285, 1510, 2570, 3020, 5140, 5587, 9509, 11174, 19018, 22348, 27935, 38036, 38807, 47545, 55870, 77614, 95090, 111740, 155228, 190180, 194035, 388070, 776140, 1435859, 2871718, 5743436, 7179295, 14358590, 28717180]

約数ペア:

[(1, 28717180), (2, 14358590), (4, 7179295), (5, 5743436), (10, 2871718), (20, 1435859), (37, 776140), (74, 388070), (148, 194035), (151, 190180), (185, 155228), (257, 111740), (302, 95090), (370, 77614), (514, 55870), (604, 47545), (740, 38807), (755, 38036), (1028, 27935), (1285, 22348), (1510, 19018), (2570, 11174), (3020, 9509), (5140, 5587)]