20191850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1911

約数の個数: 48

約数和(自身を含む): 44330496

約数和(自身を除く): 24138646

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 1861, 2170, 3722, 5425, 9305, 10850, 13027, 18610, 26054, 46525, 57691, 65135, 93050, 115382, 130270, 288455, 325675, 403837, 576910, 651350, 807674, 1442275, 2019185, 2884550, 4038370, 10095925, 20191850]

約数ペア:

[(1, 20191850), (2, 10095925), (5, 4038370), (7, 2884550), (10, 2019185), (14, 1442275), (25, 807674), (31, 651350), (35, 576910), (50, 403837), (62, 325675), (70, 288455), (155, 130270), (175, 115382), (217, 93050), (310, 65135), (350, 57691), (434, 46525), (775, 26054), (1085, 18610), (1550, 13027), (1861, 10850), (2170, 9305), (3722, 5425)]