261078960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1087829}}^1$

素因数の和:1087845

約数の個数: 40

約数和(自身を含む): 809345520

約数和(自身を除く): 548266560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1087829, 2175658, 3263487, 4351316, 5439145, 6526974, 8702632, 10878290, 13053948, 16317435, 17405264, 21756580, 26107896, 32634870, 43513160, 52215792, 65269740, 87026320, 130539480, 261078960]

約数ペア:

[(1, 261078960), (2, 130539480), (3, 87026320), (4, 65269740), (5, 52215792), (6, 43513160), (8, 32634870), (10, 26107896), (12, 21756580), (15, 17405264), (16, 16317435), (20, 13053948), (24, 10878290), (30, 8702632), (40, 6526974), (48, 5439145), (60, 4351316), (80, 3263487), (120, 2175658), (240, 1087829)]