218317825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 326166624

約数和(自身を除く): 107848799

約数列:

[1, 5, 11, 17, 25, 41, 55, 67, 85, 187, 205, 275, 289, 335, 425, 451, 697, 737, 935, 1025, 1139, 1445, 1675, 2255, 2747, 3179, 3485, 3685, 4675, 5695, 7225, 7667, 11275, 11849, 12529, 13735, 15895, 17425, 18425, 19363, 28475, 30217, 38335, 46699, 59245, 62645, 68675, 79475, 96815, 130339, 151085, 191675, 212993, 233495, 296225, 313225, 484075, 513689, 651695, 755425, 793883, 1064965, 1167475, 2568445, 3258475, 3969415, 5324825, 8732713, 12842225, 19847075, 43663565, 218317825]

約数ペア:

[(1, 218317825), (5, 43663565), (11, 19847075), (17, 12842225), (25, 8732713), (41, 5324825), (55, 3969415), (67, 3258475), (85, 2568445), (187, 1167475), (205, 1064965), (275, 793883), (289, 755425), (335, 651695), (425, 513689), (451, 484075), (697, 313225), (737, 296225), (935, 233495), (1025, 212993), (1139, 191675), (1445, 151085), (1675, 130339), (2255, 96815), (2747, 79475), (3179, 68675), (3485, 62645), (3685, 59245), (4675, 46699), (5695, 38335), (7225, 30217), (7667, 28475), (11275, 19363), (11849, 18425), (12529, 17425), (13735, 15895)]