28120340

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{11071}}^1$

素因数の和:11207

約数の個数: 24

約数和(自身を含む): 59523072

約数和(自身を除く): 31402732

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 11071, 22142, 44284, 55355, 110710, 221420, 1406017, 2812034, 5624068, 7030085, 14060170, 28120340]

約数ペア:

[(1, 28120340), (2, 14060170), (4, 7030085), (5, 5624068), (10, 2812034), (20, 1406017), (127, 221420), (254, 110710), (508, 55355), (635, 44284), (1270, 22142), (2540, 11071)]