204887620

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{29867}}^1$

素因数の和:29897

約数の個数: 48

約数和(自身を含む): 501782400

約数和(自身を除く): 296894780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 29867, 59734, 119468, 149335, 209069, 298670, 418138, 597340, 836276, 1045345, 1463483, 2090690, 2926966, 4181380, 5853932, 7317415, 10244381, 14634830, 20488762, 29269660, 40977524, 51221905, 102443810, 204887620]

約数ペア:

[(1, 204887620), (2, 102443810), (4, 51221905), (5, 40977524), (7, 29269660), (10, 20488762), (14, 14634830), (20, 10244381), (28, 7317415), (35, 5853932), (49, 4181380), (70, 2926966), (98, 2090690), (140, 1463483), (196, 1045345), (245, 836276), (343, 597340), (490, 418138), (686, 298670), (980, 209069), (1372, 149335), (1715, 119468), (3430, 59734), (6860, 29867)]