20123810

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5867}}^1$

素因数の和:5895

約数の個数: 32

約数和(自身を含む): 42249600

約数和(自身を除く): 22125790

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5867, 11734, 29335, 41069, 58670, 82138, 205345, 287483, 410690, 574966, 1437415, 2012381, 2874830, 4024762, 10061905, 20123810]

約数ペア:

[(1, 20123810), (2, 10061905), (5, 4024762), (7, 2874830), (10, 2012381), (14, 1437415), (35, 574966), (49, 410690), (70, 287483), (98, 205345), (245, 82138), (343, 58670), (490, 41069), (686, 29335), (1715, 11734), (3430, 5867)]