87255140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{1249}}^1$

素因数の和:1764

約数の個数: 48

約数和(自身を含む): 210000000

約数和(自身を除く): 122744860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 499, 998, 1249, 1996, 2495, 2498, 3493, 4990, 4996, 6245, 6986, 8743, 9980, 12490, 13972, 17465, 17486, 24980, 34930, 34972, 43715, 69860, 87430, 174860, 623251, 1246502, 2493004, 3116255, 4362757, 6232510, 8725514, 12465020, 17451028, 21813785, 43627570, 87255140]

約数ペア:

[(1, 87255140), (2, 43627570), (4, 21813785), (5, 17451028), (7, 12465020), (10, 8725514), (14, 6232510), (20, 4362757), (28, 3116255), (35, 2493004), (70, 1246502), (140, 623251), (499, 174860), (998, 87430), (1249, 69860), (1996, 43715), (2495, 34972), (2498, 34930), (3493, 24980), (4990, 17486), (4996, 17465), (6245, 13972), (6986, 12490), (8743, 9980)]