80978480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5413}}^1$

素因数の和:5454

約数の個数: 80

約数和(自身を含む): 217512864

約数和(自身を除く): 136534384

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2992, 3740, 5413, 7480, 10826, 14960, 21652, 27065, 43304, 54130, 59543, 86608, 92021, 108260, 119086, 184042, 216520, 238172, 297715, 368084, 433040, 460105, 476344, 595430, 736168, 920210, 952688, 1012231, 1190860, 1472336, 1840420, 2024462, 2381720, 3680840, 4048924, 4763440, 5061155, 7361680, 8097848, 10122310, 16195696, 20244620, 40489240, 80978480]

約数ペア:

[(1, 80978480), (2, 40489240), (4, 20244620), (5, 16195696), (8, 10122310), (10, 8097848), (11, 7361680), (16, 5061155), (17, 4763440), (20, 4048924), (22, 3680840), (34, 2381720), (40, 2024462), (44, 1840420), (55, 1472336), (68, 1190860), (80, 1012231), (85, 952688), (88, 920210), (110, 736168), (136, 595430), (170, 476344), (176, 460105), (187, 433040), (220, 368084), (272, 297715), (340, 238172), (374, 216520), (440, 184042), (680, 119086), (748, 108260), (880, 92021), (935, 86608), (1360, 59543), (1496, 54130), (1870, 43304), (2992, 27065), (3740, 21652), (5413, 14960), (7480, 10826)]