18194680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9283}}^1$

素因数の和:9308

約数の個数: 48

約数和(自身を含む): 47626920

約数和(自身を除く): 29432240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9283, 18566, 37132, 46415, 64981, 74264, 92830, 129962, 185660, 259924, 324905, 371320, 454867, 519848, 649810, 909734, 1299620, 1819468, 2274335, 2599240, 3638936, 4548670, 9097340, 18194680]

約数ペア:

[(1, 18194680), (2, 9097340), (4, 4548670), (5, 3638936), (7, 2599240), (8, 2274335), (10, 1819468), (14, 1299620), (20, 909734), (28, 649810), (35, 519848), (40, 454867), (49, 371320), (56, 324905), (70, 259924), (98, 185660), (140, 129962), (196, 92830), (245, 74264), (280, 64981), (392, 46415), (490, 37132), (980, 18566), (1960, 9283)]