19521160

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3511}}^1$

素因数の和:3661

約数の個数: 32

約数和(自身を含む): 44251200

約数和(自身を除く): 24730040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3511, 5560, 7022, 14044, 17555, 28088, 35110, 70220, 140440, 488029, 976058, 1952116, 2440145, 3904232, 4880290, 9760580, 19521160]

約数ペア:

[(1, 19521160), (2, 9760580), (4, 4880290), (5, 3904232), (8, 2440145), (10, 1952116), (20, 976058), (40, 488029), (139, 140440), (278, 70220), (556, 35110), (695, 28088), (1112, 17555), (1390, 14044), (2780, 7022), (3511, 5560)]