61389440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:290

約数の個数: 128

約数和(自身を含む): 170968320

約数和(自身を除く): 109578880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 193, 224, 280, 284, 320, 355, 386, 448, 497, 560, 568, 640, 710, 772, 896, 965, 994, 1120, 1136, 1351, 1420, 1544, 1930, 1988, 2240, 2272, 2485, 2702, 2840, 3088, 3860, 3976, 4480, 4544, 4970, 5404, 5680, 6176, 6755, 7720, 7952, 9088, 9940, 10808, 11360, 12352, 13510, 13703, 15440, 15904, 19880, 21616, 22720, 24704, 27020, 27406, 30880, 31808, 39760, 43232, 45440, 54040, 54812, 61760, 63616, 68515, 79520, 86464, 95921, 108080, 109624, 123520, 137030, 159040, 172928, 191842, 216160, 219248, 274060, 318080, 383684, 432320, 438496, 479605, 548120, 767368, 864640, 876992, 959210, 1096240, 1534736, 1753984, 1918420, 2192480, 3069472, 3836840, 4384960, 6138944, 7673680, 8769920, 12277888, 15347360, 30694720, 61389440]

約数ペア:

[(1, 61389440), (2, 30694720), (4, 15347360), (5, 12277888), (7, 8769920), (8, 7673680), (10, 6138944), (14, 4384960), (16, 3836840), (20, 3069472), (28, 2192480), (32, 1918420), (35, 1753984), (40, 1534736), (56, 1096240), (64, 959210), (70, 876992), (71, 864640), (80, 767368), (112, 548120), (128, 479605), (140, 438496), (142, 432320), (160, 383684), (193, 318080), (224, 274060), (280, 219248), (284, 216160), (320, 191842), (355, 172928), (386, 159040), (448, 137030), (497, 123520), (560, 109624), (568, 108080), (640, 95921), (710, 86464), (772, 79520), (896, 68515), (965, 63616), (994, 61760), (1120, 54812), (1136, 54040), (1351, 45440), (1420, 43232), (1544, 39760), (1930, 31808), (1988, 30880), (2240, 27406), (2272, 27020), (2485, 24704), (2702, 22720), (2840, 21616), (3088, 19880), (3860, 15904), (3976, 15440), (4480, 13703), (4544, 13510), (4970, 12352), (5404, 11360), (5680, 10808), (6176, 9940), (6755, 9088), (7720, 7952)]