85121380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 200037600

約数和(自身を除く): 114916220

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 89, 97, 116, 145, 170, 178, 194, 290, 340, 356, 388, 445, 485, 493, 580, 890, 970, 986, 1513, 1649, 1780, 1940, 1972, 2465, 2581, 2813, 3026, 3298, 4930, 5162, 5626, 6052, 6596, 7565, 8245, 8633, 9860, 10324, 11252, 12905, 14065, 15130, 16490, 17266, 25810, 28130, 30260, 32980, 34532, 43165, 43877, 47821, 51620, 56260, 86330, 87754, 95642, 146761, 172660, 175508, 191284, 219385, 239105, 250357, 293522, 438770, 478210, 500714, 587044, 733805, 877540, 956420, 1001428, 1251785, 1467610, 2503570, 2935220, 4256069, 5007140, 8512138, 17024276, 21280345, 42560690, 85121380]

約数ペア:

[(1, 85121380), (2, 42560690), (4, 21280345), (5, 17024276), (10, 8512138), (17, 5007140), (20, 4256069), (29, 2935220), (34, 2503570), (58, 1467610), (68, 1251785), (85, 1001428), (89, 956420), (97, 877540), (116, 733805), (145, 587044), (170, 500714), (178, 478210), (194, 438770), (290, 293522), (340, 250357), (356, 239105), (388, 219385), (445, 191284), (485, 175508), (493, 172660), (580, 146761), (890, 95642), (970, 87754), (986, 86330), (1513, 56260), (1649, 51620), (1780, 47821), (1940, 43877), (1972, 43165), (2465, 34532), (2581, 32980), (2813, 30260), (3026, 28130), (3298, 25810), (4930, 17266), (5162, 16490), (5626, 15130), (6052, 14065), (6596, 12905), (7565, 11252), (8245, 10324), (8633, 9860)]