30761960

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{8641}}^1$

素因数の和:8741

約数の個数: 32

約数和(自身を含む): 70000200

約数和(自身を除く): 39238240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 8641, 17282, 34564, 43205, 69128, 86410, 172820, 345640, 769049, 1538098, 3076196, 3845245, 6152392, 7690490, 15380980, 30761960]

約数ペア:

[(1, 30761960), (2, 15380980), (4, 7690490), (5, 6152392), (8, 3845245), (10, 3076196), (20, 1538098), (40, 769049), (89, 345640), (178, 172820), (356, 86410), (445, 69128), (712, 43205), (890, 34564), (1780, 17282), (3560, 8641)]