20056440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{421}}^1$

素因数の和:832

約数の個数: 64

約数和(自身を含む): 60464160

約数和(自身を除く): 40407720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 397, 421, 794, 842, 1191, 1263, 1588, 1684, 1985, 2105, 2382, 2526, 3176, 3368, 3970, 4210, 4764, 5052, 5955, 6315, 7940, 8420, 9528, 10104, 11910, 12630, 15880, 16840, 23820, 25260, 47640, 50520, 167137, 334274, 501411, 668548, 835685, 1002822, 1337096, 1671370, 2005644, 2507055, 3342740, 4011288, 5014110, 6685480, 10028220, 20056440]

約数ペア:

[(1, 20056440), (2, 10028220), (3, 6685480), (4, 5014110), (5, 4011288), (6, 3342740), (8, 2507055), (10, 2005644), (12, 1671370), (15, 1337096), (20, 1002822), (24, 835685), (30, 668548), (40, 501411), (60, 334274), (120, 167137), (397, 50520), (421, 47640), (794, 25260), (842, 23820), (1191, 16840), (1263, 15880), (1588, 12630), (1684, 11910), (1985, 10104), (2105, 9528), (2382, 8420), (2526, 7940), (3176, 6315), (3368, 5955), (3970, 5052), (4210, 4764)]