18415260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{389}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 56216160

約数和(自身を除く): 37800900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 389, 526, 778, 789, 1052, 1167, 1315, 1556, 1578, 1945, 2334, 2367, 2630, 3156, 3501, 3890, 3945, 4668, 4734, 5260, 5835, 7002, 7780, 7890, 9468, 11670, 11835, 14004, 15780, 17505, 23340, 23670, 35010, 47340, 70020, 102307, 204614, 306921, 409228, 511535, 613842, 920763, 1023070, 1227684, 1534605, 1841526, 2046140, 3069210, 3683052, 4603815, 6138420, 9207630, 18415260]

約数ペア:

[(1, 18415260), (2, 9207630), (3, 6138420), (4, 4603815), (5, 3683052), (6, 3069210), (9, 2046140), (10, 1841526), (12, 1534605), (15, 1227684), (18, 1023070), (20, 920763), (30, 613842), (36, 511535), (45, 409228), (60, 306921), (90, 204614), (180, 102307), (263, 70020), (389, 47340), (526, 35010), (778, 23670), (789, 23340), (1052, 17505), (1167, 15780), (1315, 14004), (1556, 11835), (1578, 11670), (1945, 9468), (2334, 7890), (2367, 7780), (2630, 7002), (3156, 5835), (3501, 5260), (3890, 4734), (3945, 4668)]