280216980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1556761}}^1$

素因数の和:1556776

約数の個数: 36

約数和(自身を含む): 849992052

約数和(自身を除く): 569775072

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1556761, 3113522, 4670283, 6227044, 7783805, 9340566, 14010849, 15567610, 18681132, 23351415, 28021698, 31135220, 46702830, 56043396, 70054245, 93405660, 140108490, 280216980]

約数ペア:

[(1, 280216980), (2, 140108490), (3, 93405660), (4, 70054245), (5, 56043396), (6, 46702830), (9, 31135220), (10, 28021698), (12, 23351415), (15, 18681132), (18, 15567610), (20, 14010849), (30, 9340566), (36, 7783805), (45, 6227044), (60, 4670283), (90, 3113522), (180, 1556761)]