19909370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5281}}^1$

素因数の和:5330

約数の個数: 32

約数和(自身を含む): 39931920

約数和(自身を除く): 20022550

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5281, 10562, 26405, 52810, 68653, 137306, 153149, 306298, 343265, 686530, 765745, 1531490, 1990937, 3981874, 9954685, 19909370]

約数ペア:

[(1, 19909370), (2, 9954685), (5, 3981874), (10, 1990937), (13, 1531490), (26, 765745), (29, 686530), (58, 343265), (65, 306298), (130, 153149), (145, 137306), (290, 68653), (377, 52810), (754, 26405), (1885, 10562), (3770, 5281)]