51395120

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{1873}}^1$

素因数の和:1907

約数の個数: 80

約数和(自身を含む): 139425600

約数和(自身を除く): 88030480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1873, 1960, 2744, 3430, 3746, 3920, 5488, 6860, 7492, 9365, 13111, 13720, 14984, 18730, 26222, 27440, 29968, 37460, 52444, 65555, 74920, 91777, 104888, 131110, 149840, 183554, 209776, 262220, 367108, 458885, 524440, 642439, 734216, 917770, 1048880, 1284878, 1468432, 1835540, 2569756, 3212195, 3671080, 5139512, 6424390, 7342160, 10279024, 12848780, 25697560, 51395120]

約数ペア:

[(1, 51395120), (2, 25697560), (4, 12848780), (5, 10279024), (7, 7342160), (8, 6424390), (10, 5139512), (14, 3671080), (16, 3212195), (20, 2569756), (28, 1835540), (35, 1468432), (40, 1284878), (49, 1048880), (56, 917770), (70, 734216), (80, 642439), (98, 524440), (112, 458885), (140, 367108), (196, 262220), (245, 209776), (280, 183554), (343, 149840), (392, 131110), (490, 104888), (560, 91777), (686, 74920), (784, 65555), (980, 52444), (1372, 37460), (1715, 29968), (1873, 27440), (1960, 26222), (2744, 18730), (3430, 14984), (3746, 13720), (3920, 13111), (5488, 9365), (6860, 7492)]