25406640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^2$

素因数の和:168

約数の個数: 180

約数和(自身を含む): 98905872

約数和(自身を除く): 73499232

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 71, 72, 80, 84, 90, 105, 112, 120, 126, 140, 142, 144, 168, 180, 210, 213, 240, 252, 280, 284, 315, 336, 355, 360, 420, 426, 497, 504, 560, 568, 630, 639, 710, 720, 840, 852, 994, 1008, 1065, 1136, 1260, 1278, 1420, 1491, 1680, 1704, 1988, 2130, 2485, 2520, 2556, 2840, 2982, 3195, 3408, 3976, 4260, 4473, 4970, 5040, 5041, 5112, 5680, 5964, 6390, 7455, 7952, 8520, 8946, 9940, 10082, 10224, 11928, 12780, 14910, 15123, 17040, 17892, 19880, 20164, 22365, 23856, 25205, 25560, 29820, 30246, 35287, 35784, 39760, 40328, 44730, 45369, 50410, 51120, 59640, 60492, 70574, 71568, 75615, 80656, 89460, 90738, 100820, 105861, 119280, 120984, 141148, 151230, 176435, 178920, 181476, 201640, 211722, 226845, 241968, 282296, 302460, 317583, 352870, 357840, 362952, 403280, 423444, 453690, 529305, 564592, 604920, 635166, 705740, 725904, 846888, 907380, 1058610, 1209840, 1270332, 1411480, 1587915, 1693776, 1814760, 2117220, 2540664, 2822960, 3175830, 3629520, 4234440, 5081328, 6351660, 8468880, 12703320, 25406640]

約数ペア:

[(1, 25406640), (2, 12703320), (3, 8468880), (4, 6351660), (5, 5081328), (6, 4234440), (7, 3629520), (8, 3175830), (9, 2822960), (10, 2540664), (12, 2117220), (14, 1814760), (15, 1693776), (16, 1587915), (18, 1411480), (20, 1270332), (21, 1209840), (24, 1058610), (28, 907380), (30, 846888), (35, 725904), (36, 705740), (40, 635166), (42, 604920), (45, 564592), (48, 529305), (56, 453690), (60, 423444), (63, 403280), (70, 362952), (71, 357840), (72, 352870), (80, 317583), (84, 302460), (90, 282296), (105, 241968), (112, 226845), (120, 211722), (126, 201640), (140, 181476), (142, 178920), (144, 176435), (168, 151230), (180, 141148), (210, 120984), (213, 119280), (240, 105861), (252, 100820), (280, 90738), (284, 89460), (315, 80656), (336, 75615), (355, 71568), (360, 70574), (420, 60492), (426, 59640), (497, 51120), (504, 50410), (560, 45369), (568, 44730), (630, 40328), (639, 39760), (710, 35784), (720, 35287), (840, 30246), (852, 29820), (994, 25560), (1008, 25205), (1065, 23856), (1136, 22365), (1260, 20164), (1278, 19880), (1420, 17892), (1491, 17040), (1680, 15123), (1704, 14910), (1988, 12780), (2130, 11928), (2485, 10224), (2520, 10082), (2556, 9940), (2840, 8946), (2982, 8520), (3195, 7952), (3408, 7455), (3976, 6390), (4260, 5964), (4473, 5680), (4970, 5112), (5040, 5041)]