20150420

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7691}}^1$

素因数の和:7831

約数の個数: 24

約数和(自身を含む): 42644448

約数和(自身を除く): 22494028

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7691, 15382, 30764, 38455, 76910, 153820, 1007521, 2015042, 4030084, 5037605, 10075210, 20150420]

約数ペア:

[(1, 20150420), (2, 10075210), (4, 5037605), (5, 4030084), (10, 2015042), (20, 1007521), (131, 153820), (262, 76910), (524, 38455), (655, 30764), (1310, 15382), (2620, 7691)]