400654440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2861}}^1$

素因数の和:3267

約数の個数: 96

約数和(自身を含む): 1305930600

約数和(自身を除く): 905276160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 389, 778, 1167, 1556, 1945, 2334, 2861, 3112, 3501, 3890, 4668, 5722, 5835, 7002, 7780, 8583, 9336, 11444, 11670, 14004, 14305, 15560, 17166, 17505, 22888, 23340, 25749, 28008, 28610, 34332, 35010, 42915, 46680, 51498, 57220, 68664, 70020, 85830, 102996, 114440, 128745, 140040, 171660, 205992, 257490, 343320, 514980, 1029960, 1112929, 2225858, 3338787, 4451716, 5564645, 6677574, 8903432, 10016361, 11129290, 13355148, 16693935, 20032722, 22258580, 26710296, 33387870, 40065444, 44517160, 50081805, 66775740, 80130888, 100163610, 133551480, 200327220, 400654440]

約数ペア:

[(1, 400654440), (2, 200327220), (3, 133551480), (4, 100163610), (5, 80130888), (6, 66775740), (8, 50081805), (9, 44517160), (10, 40065444), (12, 33387870), (15, 26710296), (18, 22258580), (20, 20032722), (24, 16693935), (30, 13355148), (36, 11129290), (40, 10016361), (45, 8903432), (60, 6677574), (72, 5564645), (90, 4451716), (120, 3338787), (180, 2225858), (360, 1112929), (389, 1029960), (778, 514980), (1167, 343320), (1556, 257490), (1945, 205992), (2334, 171660), (2861, 140040), (3112, 128745), (3501, 114440), (3890, 102996), (4668, 85830), (5722, 70020), (5835, 68664), (7002, 57220), (7780, 51498), (8583, 46680), (9336, 42915), (11444, 35010), (11670, 34332), (14004, 28610), (14305, 28008), (15560, 25749), (17166, 23340), (17505, 22888)]