31018545

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 80

約数和(自身を含む): 60984000

約数和(自身を除く): 29965455

約数列:

[1, 3, 5, 9, 15, 19, 27, 29, 45, 57, 81, 87, 95, 135, 139, 145, 171, 261, 285, 405, 417, 435, 513, 551, 695, 783, 855, 1251, 1305, 1539, 1653, 2085, 2349, 2565, 2641, 2755, 3753, 3915, 4031, 4959, 6255, 7695, 7923, 8265, 11259, 11745, 12093, 13205, 14877, 18765, 20155, 23769, 24795, 36279, 39615, 44631, 56295, 60465, 71307, 74385, 76589, 108837, 118845, 181395, 213921, 223155, 229767, 326511, 356535, 382945, 544185, 689301, 1069605, 1148835, 1632555, 2067903, 3446505, 6203709, 10339515, 31018545]

約数ペア:

[(1, 31018545), (3, 10339515), (5, 6203709), (9, 3446505), (15, 2067903), (19, 1632555), (27, 1148835), (29, 1069605), (45, 689301), (57, 544185), (81, 382945), (87, 356535), (95, 326511), (135, 229767), (139, 223155), (145, 213921), (171, 181395), (261, 118845), (285, 108837), (405, 76589), (417, 74385), (435, 71307), (513, 60465), (551, 56295), (695, 44631), (783, 39615), (855, 36279), (1251, 24795), (1305, 23769), (1539, 20155), (1653, 18765), (2085, 14877), (2349, 13205), (2565, 12093), (2641, 11745), (2755, 11259), (3753, 8265), (3915, 7923), (4031, 7695), (4959, 6255)]