128575260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64937}}^1$

素因数の和:64963

約数の個数: 72

約数和(自身を含む): 425473776

約数和(自身を除く): 296898516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 64937, 129874, 194811, 259748, 324685, 389622, 584433, 649370, 714307, 779244, 974055, 1168866, 1298740, 1428614, 1948110, 2142921, 2337732, 2857228, 2922165, 3571535, 3896220, 4285842, 5844330, 6428763, 7143070, 8571684, 10714605, 11688660, 12857526, 14286140, 21429210, 25715052, 32143815, 42858420, 64287630, 128575260]

約数ペア:

[(1, 128575260), (2, 64287630), (3, 42858420), (4, 32143815), (5, 25715052), (6, 21429210), (9, 14286140), (10, 12857526), (11, 11688660), (12, 10714605), (15, 8571684), (18, 7143070), (20, 6428763), (22, 5844330), (30, 4285842), (33, 3896220), (36, 3571535), (44, 2922165), (45, 2857228), (55, 2337732), (60, 2142921), (66, 1948110), (90, 1428614), (99, 1298740), (110, 1168866), (132, 974055), (165, 779244), (180, 714307), (198, 649370), (220, 584433), (330, 389622), (396, 324685), (495, 259748), (660, 194811), (990, 129874), (1980, 64937)]