2105372225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 3083508000

約数和(自身を除く): 978135775

約数列:

[1, 5, 11, 17, 25, 55, 59, 85, 187, 275, 289, 295, 425, 449, 649, 935, 1003, 1445, 1475, 2245, 3179, 3245, 4675, 4939, 5015, 7225, 7633, 11033, 11225, 15895, 16225, 17051, 24695, 25075, 26491, 38165, 55165, 79475, 83963, 85255, 123475, 129761, 132455, 187561, 190825, 275825, 291401, 419815, 426275, 450347, 648805, 662275, 937805, 1427371, 1457005, 2099075, 2251735, 3244025, 4689025, 4953817, 7136855, 7285025, 7655899, 11258675, 24769085, 35684275, 38279495, 84214889, 123845425, 191397475, 421074445, 2105372225]

約数ペア:

[(1, 2105372225), (5, 421074445), (11, 191397475), (17, 123845425), (25, 84214889), (55, 38279495), (59, 35684275), (85, 24769085), (187, 11258675), (275, 7655899), (289, 7285025), (295, 7136855), (425, 4953817), (449, 4689025), (649, 3244025), (935, 2251735), (1003, 2099075), (1445, 1457005), (1475, 1427371), (2245, 937805), (3179, 662275), (3245, 648805), (4675, 450347), (4939, 426275), (5015, 419815), (7225, 291401), (7633, 275825), (11033, 190825), (11225, 187561), (15895, 132455), (16225, 129761), (17051, 123475), (24695, 85255), (25075, 83963), (26491, 79475), (38165, 55165)]