31371560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:147

約数の個数: 128

約数和(自身を含む): 82736640

約数和(自身を除く): 51365080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 41, 44, 47, 55, 74, 82, 88, 94, 110, 148, 164, 185, 188, 205, 220, 235, 296, 328, 370, 376, 407, 410, 440, 451, 470, 517, 740, 814, 820, 902, 940, 1034, 1480, 1517, 1628, 1640, 1739, 1804, 1880, 1927, 2035, 2068, 2255, 2585, 3034, 3256, 3478, 3608, 3854, 4070, 4136, 4510, 5170, 6068, 6956, 7585, 7708, 8140, 8695, 9020, 9635, 10340, 12136, 13912, 15170, 15416, 16280, 16687, 17390, 18040, 19129, 19270, 20680, 21197, 30340, 33374, 34780, 38258, 38540, 42394, 60680, 66748, 69560, 71299, 76516, 77080, 83435, 84788, 95645, 105985, 133496, 142598, 153032, 166870, 169576, 191290, 211970, 285196, 333740, 356495, 382580, 423940, 570392, 667480, 712990, 765160, 784289, 847880, 1425980, 1568578, 2851960, 3137156, 3921445, 6274312, 7842890, 15685780, 31371560]

約数ペア:

[(1, 31371560), (2, 15685780), (4, 7842890), (5, 6274312), (8, 3921445), (10, 3137156), (11, 2851960), (20, 1568578), (22, 1425980), (37, 847880), (40, 784289), (41, 765160), (44, 712990), (47, 667480), (55, 570392), (74, 423940), (82, 382580), (88, 356495), (94, 333740), (110, 285196), (148, 211970), (164, 191290), (185, 169576), (188, 166870), (205, 153032), (220, 142598), (235, 133496), (296, 105985), (328, 95645), (370, 84788), (376, 83435), (407, 77080), (410, 76516), (440, 71299), (451, 69560), (470, 66748), (517, 60680), (740, 42394), (814, 38540), (820, 38258), (902, 34780), (940, 33374), (1034, 30340), (1480, 21197), (1517, 20680), (1628, 19270), (1640, 19129), (1739, 18040), (1804, 17390), (1880, 16687), (1927, 16280), (2035, 15416), (2068, 15170), (2255, 13912), (2585, 12136), (3034, 10340), (3256, 9635), (3478, 9020), (3608, 8695), (3854, 8140), (4070, 7708), (4136, 7585), (4510, 6956), (5170, 6068)]