27790820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19571}}^1$

素因数の和:19651

約数の個数: 24

約数和(自身を含む): 59185728

約数和(自身を除く): 31394908

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 19571, 39142, 78284, 97855, 195710, 391420, 1389541, 2779082, 5558164, 6947705, 13895410, 27790820]

約数ペア:

[(1, 27790820), (2, 13895410), (4, 6947705), (5, 5558164), (10, 2779082), (20, 1389541), (71, 391420), (142, 195710), (284, 97855), (355, 78284), (710, 39142), (1420, 19571)]