18453640

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3319}}^1$

素因数の和:3469

約数の個数: 32

約数和(自身を含む): 41832000

約数和(自身を除く): 23378360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3319, 5560, 6638, 13276, 16595, 26552, 33190, 66380, 132760, 461341, 922682, 1845364, 2306705, 3690728, 4613410, 9226820, 18453640]

約数ペア:

[(1, 18453640), (2, 9226820), (4, 4613410), (5, 3690728), (8, 2306705), (10, 1845364), (20, 922682), (40, 461341), (139, 132760), (278, 66380), (556, 33190), (695, 26552), (1112, 16595), (1390, 13276), (2780, 6638), (3319, 5560)]