126809740

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{15971}}^1$

素因数の和:16377

約数の個数: 24

約数和(自身を含む): 266987952

約数和(自身を除く): 140178212

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 15971, 31942, 63884, 79855, 159710, 319420, 6340487, 12680974, 25361948, 31702435, 63404870, 126809740]

約数ペア:

[(1, 126809740), (2, 63404870), (4, 31702435), (5, 25361948), (10, 12680974), (20, 6340487), (397, 319420), (794, 159710), (1588, 79855), (1985, 63884), (3970, 31942), (7940, 15971)]