16889740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{120641}}^1$

素因数の和:120657

約数の個数: 24

約数和(自身を含む): 40535712

約数和(自身を除く): 23645972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 120641, 241282, 482564, 603205, 844487, 1206410, 1688974, 2412820, 3377948, 4222435, 8444870, 16889740]

約数ペア:

[(1, 16889740), (2, 8444870), (4, 4222435), (5, 3377948), (7, 2412820), (10, 1688974), (14, 1206410), (20, 844487), (28, 603205), (35, 482564), (70, 241282), (140, 120641)]