72821780

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{37537}}^1$

素因数の和:37643

約数の個数: 24

約数和(自身を含む): 154506408

約数和(自身を除く): 81684628

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 37537, 75074, 150148, 187685, 375370, 750740, 3641089, 7282178, 14564356, 18205445, 36410890, 72821780]

約数ペア:

[(1, 72821780), (2, 36410890), (4, 18205445), (5, 14564356), (10, 7282178), (20, 3641089), (97, 750740), (194, 375370), (388, 187685), (485, 150148), (970, 75074), (1940, 37537)]