259460040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{619}}^1$

素因数の和:1139

約数の個数: 128

約数和(自身を含む): 892800000

約数和(自身を除く): 633339960

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, 70, 84, 105, 120, 140, 168, 210, 280, 420, 499, 619, 840, 998, 1238, 1497, 1857, 1996, 2476, 2495, 2994, 3095, 3493, 3714, 3992, 4333, 4952, 4990, 5988, 6190, 6986, 7428, 7485, 8666, 9285, 9980, 10479, 11976, 12380, 12999, 13972, 14856, 14970, 17332, 17465, 18570, 19960, 20958, 21665, 24760, 25998, 27944, 29940, 34664, 34930, 37140, 41916, 43330, 51996, 52395, 59880, 64995, 69860, 74280, 83832, 86660, 103992, 104790, 129990, 139720, 173320, 209580, 259980, 308881, 419160, 519960, 617762, 926643, 1235524, 1544405, 1853286, 2162167, 2471048, 3088810, 3706572, 4324334, 4633215, 6177620, 6486501, 7413144, 8648668, 9266430, 10810835, 12355240, 12973002, 17297336, 18532860, 21621670, 25946004, 32432505, 37065720, 43243340, 51892008, 64865010, 86486680, 129730020, 259460040]

約数ペア:

[(1, 259460040), (2, 129730020), (3, 86486680), (4, 64865010), (5, 51892008), (6, 43243340), (7, 37065720), (8, 32432505), (10, 25946004), (12, 21621670), (14, 18532860), (15, 17297336), (20, 12973002), (21, 12355240), (24, 10810835), (28, 9266430), (30, 8648668), (35, 7413144), (40, 6486501), (42, 6177620), (56, 4633215), (60, 4324334), (70, 3706572), (84, 3088810), (105, 2471048), (120, 2162167), (140, 1853286), (168, 1544405), (210, 1235524), (280, 926643), (420, 617762), (499, 519960), (619, 419160), (840, 308881), (998, 259980), (1238, 209580), (1497, 173320), (1857, 139720), (1996, 129990), (2476, 104790), (2495, 103992), (2994, 86660), (3095, 83832), (3493, 74280), (3714, 69860), (3992, 64995), (4333, 59880), (4952, 52395), (4990, 51996), (5988, 43330), (6190, 41916), (6986, 37140), (7428, 34930), (7485, 34664), (8666, 29940), (9285, 27944), (9980, 25998), (10479, 24760), (11976, 21665), (12380, 20958), (12999, 19960), (13972, 18570), (14856, 17465), (14970, 17332)]