19219160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11719}}^1$

素因数の和:11771

約数の個数: 32

約数和(自身を含む): 44301600

約数和(自身を除く): 25082440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11719, 23438, 46876, 58595, 93752, 117190, 234380, 468760, 480479, 960958, 1921916, 2402395, 3843832, 4804790, 9609580, 19219160]

約数ペア:

[(1, 19219160), (2, 9609580), (4, 4804790), (5, 3843832), (8, 2402395), (10, 1921916), (20, 960958), (40, 480479), (41, 468760), (82, 234380), (164, 117190), (205, 93752), (328, 58595), (410, 46876), (820, 23438), (1640, 11719)]