18646705

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:95

約数の個数: 72

約数和(自身を含む): 31112424

約数和(自身を除く): 12465719

約数列:

[1, 5, 7, 11, 17, 35, 37, 49, 55, 77, 85, 119, 121, 185, 187, 245, 259, 385, 407, 539, 595, 605, 629, 833, 847, 935, 1295, 1309, 1813, 2035, 2057, 2695, 2849, 3145, 4165, 4235, 4403, 4477, 5929, 6545, 6919, 9065, 9163, 10285, 14245, 14399, 19943, 22015, 22385, 29645, 30821, 31339, 34595, 45815, 48433, 71995, 76109, 99715, 100793, 154105, 156695, 219373, 242165, 339031, 380545, 503965, 532763, 1096865, 1695155, 2663815, 3729341, 18646705]

約数ペア:

[(1, 18646705), (5, 3729341), (7, 2663815), (11, 1695155), (17, 1096865), (35, 532763), (37, 503965), (49, 380545), (55, 339031), (77, 242165), (85, 219373), (119, 156695), (121, 154105), (185, 100793), (187, 99715), (245, 76109), (259, 71995), (385, 48433), (407, 45815), (539, 34595), (595, 31339), (605, 30821), (629, 29645), (833, 22385), (847, 22015), (935, 19943), (1295, 14399), (1309, 14245), (1813, 10285), (2035, 9163), (2057, 9065), (2695, 6919), (2849, 6545), (3145, 5929), (4165, 4477), (4235, 4403)]