78880560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29879}}^1$

素因数の和:29906

約数の個数: 80

約数和(自身を含む): 266768640

約数和(自身を除く): 187888080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 29879, 59758, 89637, 119516, 149395, 179274, 239032, 298790, 328669, 358548, 448185, 478064, 597580, 657338, 717096, 896370, 986007, 1195160, 1314676, 1434192, 1643345, 1792740, 1972014, 2390320, 2629352, 3286690, 3585480, 3944028, 4930035, 5258704, 6573380, 7170960, 7888056, 9860070, 13146760, 15776112, 19720140, 26293520, 39440280, 78880560]

約数ペア:

[(1, 78880560), (2, 39440280), (3, 26293520), (4, 19720140), (5, 15776112), (6, 13146760), (8, 9860070), (10, 7888056), (11, 7170960), (12, 6573380), (15, 5258704), (16, 4930035), (20, 3944028), (22, 3585480), (24, 3286690), (30, 2629352), (33, 2390320), (40, 1972014), (44, 1792740), (48, 1643345), (55, 1434192), (60, 1314676), (66, 1195160), (80, 986007), (88, 896370), (110, 717096), (120, 657338), (132, 597580), (165, 478064), (176, 448185), (220, 358548), (240, 328669), (264, 298790), (330, 239032), (440, 179274), (528, 149395), (660, 119516), (880, 89637), (1320, 59758), (2640, 29879)]