20855420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28183}}^1$

素因数の和:28229

約数の個数: 24

約数和(自身を含む): 44981664

約数和(自身を除く): 24126244

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28183, 56366, 112732, 140915, 281830, 563660, 1042771, 2085542, 4171084, 5213855, 10427710, 20855420]

約数ペア:

[(1, 20855420), (2, 10427710), (4, 5213855), (5, 4171084), (10, 2085542), (20, 1042771), (37, 563660), (74, 281830), (148, 140915), (185, 112732), (370, 56366), (740, 28183)]