19508920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15733}}^1$

素因数の和:15775

約数の個数: 32

約数和(自身を含む): 45313920

約数和(自身を除く): 25805000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15733, 31466, 62932, 78665, 125864, 157330, 314660, 487723, 629320, 975446, 1950892, 2438615, 3901784, 4877230, 9754460, 19508920]

約数ペア:

[(1, 19508920), (2, 9754460), (4, 4877230), (5, 3901784), (8, 2438615), (10, 1950892), (20, 975446), (31, 629320), (40, 487723), (62, 314660), (124, 157330), (155, 125864), (248, 78665), (310, 62932), (620, 31466), (1240, 15733)]