821024420

素因数分解:

$2^2\times 5^1\times {\mathrm{7487}}^1\times {\mathrm{5483}}^1$

素因数の和:12979

約数の個数: 24

約数和(自身を含む): 1724696064

約数和(自身を除く): 903671644

約数列:

[1, 2, 4, 5, 10, 20, 5483, 7487, 10966, 14974, 21932, 27415, 29948, 37435, 54830, 74870, 109660, 149740, 41051221, 82102442, 164204884, 205256105, 410512210, 821024420]

約数ペア:

[(1, 821024420), (2, 410512210), (4, 205256105), (5, 164204884), (10, 82102442), (20, 41051221), (5483, 149740), (7487, 109660), (10966, 74870), (14974, 54830), (21932, 37435), (27415, 29948)]