68655020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{490393}}^1$

素因数の和:490409

約数の個数: 24

約数和(自身を含む): 164772384

約数和(自身を除く): 96117364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 490393, 980786, 1961572, 2451965, 3432751, 4903930, 6865502, 9807860, 13731004, 17163755, 34327510, 68655020]

約数ペア:

[(1, 68655020), (2, 34327510), (4, 17163755), (5, 13731004), (7, 9807860), (10, 6865502), (14, 4903930), (20, 3432751), (28, 2451965), (35, 1961572), (70, 980786), (140, 490393)]