156940820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{88169}}^1$

素因数の和:88267

約数の個数: 24

約数和(自身を含む): 333282600

約数和(自身を除く): 176341780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 88169, 176338, 352676, 440845, 881690, 1763380, 7847041, 15694082, 31388164, 39235205, 78470410, 156940820]

約数ペア:

[(1, 156940820), (2, 78470410), (4, 39235205), (5, 31388164), (10, 15694082), (20, 7847041), (89, 1763380), (178, 881690), (356, 440845), (445, 352676), (890, 176338), (1780, 88169)]