206520560

素因数分解:

$2^4\times 5^1\times {\mathrm{2581507}}^1$

素因数の和:2581520

約数の個数: 20

約数和(自身を含む): 480160488

約数和(自身を除く): 273639928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2581507, 5163014, 10326028, 12907535, 20652056, 25815070, 41304112, 51630140, 103260280, 206520560]

約数ペア:

[(1, 206520560), (2, 103260280), (4, 51630140), (5, 41304112), (8, 25815070), (10, 20652056), (16, 12907535), (20, 10326028), (40, 5163014), (80, 2581507)]