138468620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{1319}}^1$

素因数の和:1538

約数の個数: 48

約数和(自身を含む): 302702400

約数和(自身を除く): 164233780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 181, 290, 362, 580, 724, 905, 1319, 1810, 2638, 3620, 5249, 5276, 6595, 10498, 13190, 20996, 26245, 26380, 38251, 52490, 76502, 104980, 153004, 191255, 238739, 382510, 477478, 765020, 954956, 1193695, 2387390, 4774780, 6923431, 13846862, 27693724, 34617155, 69234310, 138468620]

約数ペア:

[(1, 138468620), (2, 69234310), (4, 34617155), (5, 27693724), (10, 13846862), (20, 6923431), (29, 4774780), (58, 2387390), (116, 1193695), (145, 954956), (181, 765020), (290, 477478), (362, 382510), (580, 238739), (724, 191255), (905, 153004), (1319, 104980), (1810, 76502), (2638, 52490), (3620, 38251), (5249, 26380), (5276, 26245), (6595, 20996), (10498, 13190)]