25379480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{90641}}^1$

素因数の和:90659

約数の個数: 32

約数和(自身を含む): 65262240

約数和(自身を除く): 39882760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 90641, 181282, 362564, 453205, 634487, 725128, 906410, 1268974, 1812820, 2537948, 3172435, 3625640, 5075896, 6344870, 12689740, 25379480]

約数ペア:

[(1, 25379480), (2, 12689740), (4, 6344870), (5, 5075896), (7, 3625640), (8, 3172435), (10, 2537948), (14, 1812820), (20, 1268974), (28, 906410), (35, 725128), (40, 634487), (56, 453205), (70, 362564), (140, 181282), (280, 90641)]