51207380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{733}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 123312000

約数和(自身を除く): 72104620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 499, 733, 998, 1466, 1996, 2495, 2932, 3493, 3665, 4990, 5131, 6986, 7330, 9980, 10262, 13972, 14660, 17465, 20524, 25655, 34930, 51310, 69860, 102620, 365767, 731534, 1463068, 1828835, 2560369, 3657670, 5120738, 7315340, 10241476, 12801845, 25603690, 51207380]

約数ペア:

[(1, 51207380), (2, 25603690), (4, 12801845), (5, 10241476), (7, 7315340), (10, 5120738), (14, 3657670), (20, 2560369), (28, 1828835), (35, 1463068), (70, 731534), (140, 365767), (499, 102620), (733, 69860), (998, 51310), (1466, 34930), (1996, 25655), (2495, 20524), (2932, 17465), (3493, 14660), (3665, 13972), (4990, 10262), (5131, 9980), (6986, 7330)]