201780704410

素因数分解:

$2^1\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{10155043}}^1$

素因数の和:10157037

約数の個数: 16

約数和(自身を含む): 363388094496

約数和(自身を除く): 161607390086

約数列:

[1, 2, 5, 10, 1987, 3974, 9935, 19870, 10155043, 20310086, 50775215, 101550430, 20178070441, 40356140882, 100890352205, 201780704410]

約数ペア:

[(1, 201780704410), (2, 100890352205), (5, 40356140882), (10, 20178070441), (1987, 101550430), (3974, 50775215), (9935, 20310086), (19870, 10155043)]