640747980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{3559711}}^1$

素因数の和:3559726

約数の個数: 36

約数和(自身を含む): 1943602752

約数和(自身を除く): 1302854772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 3559711, 7119422, 10679133, 14238844, 17798555, 21358266, 32037399, 35597110, 42716532, 53395665, 64074798, 71194220, 106791330, 128149596, 160186995, 213582660, 320373990, 640747980]

約数ペア:

[(1, 640747980), (2, 320373990), (3, 213582660), (4, 160186995), (5, 128149596), (6, 106791330), (9, 71194220), (10, 64074798), (12, 53395665), (15, 42716532), (18, 35597110), (20, 32037399), (30, 21358266), (36, 17798555), (45, 14238844), (60, 10679133), (90, 7119422), (180, 3559711)]