81581460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1907}}^1$

素因数の和:1973

約数の個数: 96

約数和(自身を含む): 246177792

約数和(自身を除く): 164596332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 31, 46, 60, 62, 69, 92, 93, 115, 124, 138, 155, 186, 230, 276, 310, 345, 372, 460, 465, 620, 690, 713, 930, 1380, 1426, 1860, 1907, 2139, 2852, 3565, 3814, 4278, 5721, 7130, 7628, 8556, 9535, 10695, 11442, 14260, 19070, 21390, 22884, 28605, 38140, 42780, 43861, 57210, 59117, 87722, 114420, 118234, 131583, 175444, 177351, 219305, 236468, 263166, 295585, 354702, 438610, 526332, 591170, 657915, 709404, 877220, 886755, 1182340, 1315830, 1359691, 1773510, 2631660, 2719382, 3547020, 4079073, 5438764, 6798455, 8158146, 13596910, 16316292, 20395365, 27193820, 40790730, 81581460]

約数ペア:

[(1, 81581460), (2, 40790730), (3, 27193820), (4, 20395365), (5, 16316292), (6, 13596910), (10, 8158146), (12, 6798455), (15, 5438764), (20, 4079073), (23, 3547020), (30, 2719382), (31, 2631660), (46, 1773510), (60, 1359691), (62, 1315830), (69, 1182340), (92, 886755), (93, 877220), (115, 709404), (124, 657915), (138, 591170), (155, 526332), (186, 438610), (230, 354702), (276, 295585), (310, 263166), (345, 236468), (372, 219305), (460, 177351), (465, 175444), (620, 131583), (690, 118234), (713, 114420), (930, 87722), (1380, 59117), (1426, 57210), (1860, 43861), (1907, 42780), (2139, 38140), (2852, 28605), (3565, 22884), (3814, 21390), (4278, 19070), (5721, 14260), (7130, 11442), (7628, 10695), (8556, 9535)]