20173215720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{490117}}^1$

素因数の和:490152

約数の個数: 128

約数和(自身を含む): 70576992000

約数和(自身を除く): 50403776280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 490, 588, 686, 735, 840, 980, 1029, 1176, 1372, 1470, 1715, 1960, 2058, 2744, 2940, 3430, 4116, 5145, 5880, 6860, 8232, 10290, 13720, 20580, 41160, 490117, 980234, 1470351, 1960468, 2450585, 2940702, 3430819, 3920936, 4901170, 5881404, 6861638, 7351755, 9802340, 10292457, 11762808, 13723276, 14703510, 17154095, 19604680, 20584914, 24015733, 27446552, 29407020, 34308190, 41169828, 48031466, 51462285, 58814040, 68616380, 72047199, 82339656, 96062932, 102924570, 120078665, 137232760, 144094398, 168110131, 192125864, 205849140, 240157330, 288188796, 336220262, 360235995, 411698280, 480314660, 504330393, 576377592, 672440524, 720471990, 840550655, 960629320, 1008660786, 1344881048, 1440943980, 1681101310, 2017321572, 2521651965, 2881887960, 3362202620, 4034643144, 5043303930, 6724405240, 10086607860, 20173215720]

約数ペア:

[(1, 20173215720), (2, 10086607860), (3, 6724405240), (4, 5043303930), (5, 4034643144), (6, 3362202620), (7, 2881887960), (8, 2521651965), (10, 2017321572), (12, 1681101310), (14, 1440943980), (15, 1344881048), (20, 1008660786), (21, 960629320), (24, 840550655), (28, 720471990), (30, 672440524), (35, 576377592), (40, 504330393), (42, 480314660), (49, 411698280), (56, 360235995), (60, 336220262), (70, 288188796), (84, 240157330), (98, 205849140), (105, 192125864), (120, 168110131), (140, 144094398), (147, 137232760), (168, 120078665), (196, 102924570), (210, 96062932), (245, 82339656), (280, 72047199), (294, 68616380), (343, 58814040), (392, 51462285), (420, 48031466), (490, 41169828), (588, 34308190), (686, 29407020), (735, 27446552), (840, 24015733), (980, 20584914), (1029, 19604680), (1176, 17154095), (1372, 14703510), (1470, 13723276), (1715, 11762808), (1960, 10292457), (2058, 9802340), (2744, 7351755), (2940, 6861638), (3430, 5881404), (4116, 4901170), (5145, 3920936), (5880, 3430819), (6860, 2940702), (8232, 2450585), (10290, 1960468), (13720, 1470351), (20580, 980234), (41160, 490117)]