129956220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{721979}}^1$

素因数の和:721994

約数の個数: 36

約数和(自身を含む): 394201080

約数和(自身を除く): 264244860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 721979, 1443958, 2165937, 2887916, 3609895, 4331874, 6497811, 7219790, 8663748, 10829685, 12995622, 14439580, 21659370, 25991244, 32489055, 43318740, 64978110, 129956220]

約数ペア:

[(1, 129956220), (2, 64978110), (3, 43318740), (4, 32489055), (5, 25991244), (6, 21659370), (9, 14439580), (10, 12995622), (12, 10829685), (15, 8663748), (18, 7219790), (20, 6497811), (30, 4331874), (36, 3609895), (45, 2887916), (60, 2165937), (90, 1443958), (180, 721979)]