2013216725

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:895

約数の個数: 72

約数和(自身を含む): 2940883200

約数和(自身を除く): 927666475

約数列:

[1, 5, 13, 19, 25, 31, 65, 95, 155, 169, 247, 325, 403, 475, 589, 775, 809, 845, 1235, 2015, 2945, 3211, 4045, 4225, 5239, 6175, 7657, 10075, 10517, 14725, 15371, 16055, 20225, 25079, 26195, 38285, 52585, 76855, 80275, 99541, 125395, 130975, 136721, 191425, 199823, 262925, 326027, 384275, 476501, 497705, 626975, 683605, 999115, 1630135, 2382505, 2488525, 2597699, 3418025, 4238351, 4995575, 6194513, 8150675, 11912525, 12988495, 21191755, 30972565, 64942475, 80528669, 105958775, 154862825, 402643345, 2013216725]

約数ペア:

[(1, 2013216725), (5, 402643345), (13, 154862825), (19, 105958775), (25, 80528669), (31, 64942475), (65, 30972565), (95, 21191755), (155, 12988495), (169, 11912525), (247, 8150675), (325, 6194513), (403, 4995575), (475, 4238351), (589, 3418025), (775, 2597699), (809, 2488525), (845, 2382505), (1235, 1630135), (2015, 999115), (2945, 683605), (3211, 626975), (4045, 497705), (4225, 476501), (5239, 384275), (6175, 326027), (7657, 262925), (10075, 199823), (10517, 191425), (14725, 136721), (15371, 130975), (16055, 125395), (20225, 99541), (25079, 80275), (26195, 76855), (38285, 52585)]