18806690

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5483}}^1$

素因数の和:5511

約数の個数: 32

約数和(自身を含む): 39484800

約数和(自身を除く): 20678110

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5483, 10966, 27415, 38381, 54830, 76762, 191905, 268667, 383810, 537334, 1343335, 1880669, 2686670, 3761338, 9403345, 18806690]

約数ペア:

[(1, 18806690), (2, 9403345), (5, 3761338), (7, 2686670), (10, 1880669), (14, 1343335), (35, 537334), (49, 383810), (70, 268667), (98, 191905), (245, 76762), (343, 54830), (490, 38381), (686, 27415), (1715, 10966), (3430, 5483)]