21774280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 58786560

約数和(自身を除く): 37012280

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 41, 44, 55, 68, 71, 82, 85, 88, 110, 136, 142, 164, 170, 187, 205, 220, 284, 328, 340, 355, 374, 410, 440, 451, 568, 680, 697, 710, 748, 781, 820, 902, 935, 1207, 1394, 1420, 1496, 1562, 1640, 1804, 1870, 2255, 2414, 2788, 2840, 2911, 3124, 3485, 3608, 3740, 3905, 4510, 4828, 5576, 5822, 6035, 6248, 6970, 7480, 7667, 7810, 9020, 9656, 11644, 12070, 13277, 13940, 14555, 15334, 15620, 18040, 23288, 24140, 26554, 27880, 29110, 30668, 31240, 32021, 38335, 48280, 49487, 53108, 58220, 61336, 64042, 66385, 76670, 98974, 106216, 116440, 128084, 132770, 153340, 160105, 197948, 247435, 256168, 265540, 306680, 320210, 395896, 494870, 531080, 544357, 640420, 989740, 1088714, 1280840, 1979480, 2177428, 2721785, 4354856, 5443570, 10887140, 21774280]

約数ペア:

[(1, 21774280), (2, 10887140), (4, 5443570), (5, 4354856), (8, 2721785), (10, 2177428), (11, 1979480), (17, 1280840), (20, 1088714), (22, 989740), (34, 640420), (40, 544357), (41, 531080), (44, 494870), (55, 395896), (68, 320210), (71, 306680), (82, 265540), (85, 256168), (88, 247435), (110, 197948), (136, 160105), (142, 153340), (164, 132770), (170, 128084), (187, 116440), (205, 106216), (220, 98974), (284, 76670), (328, 66385), (340, 64042), (355, 61336), (374, 58220), (410, 53108), (440, 49487), (451, 48280), (568, 38335), (680, 32021), (697, 31240), (710, 30668), (748, 29110), (781, 27880), (820, 26554), (902, 24140), (935, 23288), (1207, 18040), (1394, 15620), (1420, 15334), (1496, 14555), (1562, 13940), (1640, 13277), (1804, 12070), (1870, 11644), (2255, 9656), (2414, 9020), (2788, 7810), (2840, 7667), (2911, 7480), (3124, 6970), (3485, 6248), (3608, 6035), (3740, 5822), (3905, 5576), (4510, 4828)]