78365390

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{461}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 143700480

約数和(自身を除く): 65335090

約数列:

[1, 2, 5, 10, 89, 178, 191, 382, 445, 461, 890, 922, 955, 1910, 2305, 4610, 16999, 33998, 41029, 82058, 84995, 88051, 169990, 176102, 205145, 410290, 440255, 880510, 7836539, 15673078, 39182695, 78365390]

約数ペア:

[(1, 78365390), (2, 39182695), (5, 15673078), (10, 7836539), (89, 880510), (178, 440255), (191, 410290), (382, 205145), (445, 176102), (461, 169990), (890, 88051), (922, 84995), (955, 82058), (1910, 41029), (2305, 33998), (4610, 16999)]