25158840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:573

約数の個数: 128

約数和(自身を含む): 87851520

約数和(自身を除く): 62692680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 420, 427, 488, 491, 610, 732, 840, 854, 915, 982, 1220, 1281, 1464, 1473, 1708, 1830, 1964, 2135, 2440, 2455, 2562, 2946, 3416, 3437, 3660, 3928, 4270, 4910, 5124, 5892, 6405, 6874, 7320, 7365, 8540, 9820, 10248, 10311, 11784, 12810, 13748, 14730, 17080, 17185, 19640, 20622, 25620, 27496, 29460, 29951, 34370, 41244, 51240, 51555, 58920, 59902, 68740, 82488, 89853, 103110, 119804, 137480, 149755, 179706, 206220, 209657, 239608, 299510, 359412, 412440, 419314, 449265, 599020, 628971, 718824, 838628, 898530, 1048285, 1198040, 1257942, 1677256, 1797060, 2096570, 2515884, 3144855, 3594120, 4193140, 5031768, 6289710, 8386280, 12579420, 25158840]

約数ペア:

[(1, 25158840), (2, 12579420), (3, 8386280), (4, 6289710), (5, 5031768), (6, 4193140), (7, 3594120), (8, 3144855), (10, 2515884), (12, 2096570), (14, 1797060), (15, 1677256), (20, 1257942), (21, 1198040), (24, 1048285), (28, 898530), (30, 838628), (35, 718824), (40, 628971), (42, 599020), (56, 449265), (60, 419314), (61, 412440), (70, 359412), (84, 299510), (105, 239608), (120, 209657), (122, 206220), (140, 179706), (168, 149755), (183, 137480), (210, 119804), (244, 103110), (280, 89853), (305, 82488), (366, 68740), (420, 59902), (427, 58920), (488, 51555), (491, 51240), (610, 41244), (732, 34370), (840, 29951), (854, 29460), (915, 27496), (982, 25620), (1220, 20622), (1281, 19640), (1464, 17185), (1473, 17080), (1708, 14730), (1830, 13748), (1964, 12810), (2135, 11784), (2440, 10311), (2455, 10248), (2562, 9820), (2946, 8540), (3416, 7365), (3437, 7320), (3660, 6874), (3928, 6405), (4270, 5892), (4910, 5124)]