51504880

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{1877}}^1$

素因数の和:1911

約数の個数: 80

約数和(自身を含む): 139723200

約数和(自身を除く): 88218320

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, 1877, 1960, 2744, 3430, 3754, 3920, 5488, 6860, 7508, 9385, 13139, 13720, 15016, 18770, 26278, 27440, 30032, 37540, 52556, 65695, 75080, 91973, 105112, 131390, 150160, 183946, 210224, 262780, 367892, 459865, 525560, 643811, 735784, 919730, 1051120, 1287622, 1471568, 1839460, 2575244, 3219055, 3678920, 5150488, 6438110, 7357840, 10300976, 12876220, 25752440, 51504880]

約数ペア:

[(1, 51504880), (2, 25752440), (4, 12876220), (5, 10300976), (7, 7357840), (8, 6438110), (10, 5150488), (14, 3678920), (16, 3219055), (20, 2575244), (28, 1839460), (35, 1471568), (40, 1287622), (49, 1051120), (56, 919730), (70, 735784), (80, 643811), (98, 525560), (112, 459865), (140, 367892), (196, 262780), (245, 210224), (280, 183946), (343, 150160), (392, 131390), (490, 105112), (560, 91973), (686, 75080), (784, 65695), (980, 52556), (1372, 37540), (1715, 30032), (1877, 27440), (1960, 26278), (2744, 18770), (3430, 15016), (3754, 13720), (3920, 13139), (5488, 9385), (6860, 7508)]