18836660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{691}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 41852160

約数和(自身を除く): 23015500

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 94, 116, 145, 188, 235, 290, 470, 580, 691, 940, 1363, 1382, 2726, 2764, 3455, 5452, 6815, 6910, 13630, 13820, 20039, 27260, 32477, 40078, 64954, 80156, 100195, 129908, 162385, 200390, 324770, 400780, 649540, 941833, 1883666, 3767332, 4709165, 9418330, 18836660]

約数ペア:

[(1, 18836660), (2, 9418330), (4, 4709165), (5, 3767332), (10, 1883666), (20, 941833), (29, 649540), (47, 400780), (58, 324770), (94, 200390), (116, 162385), (145, 129908), (188, 100195), (235, 80156), (290, 64954), (470, 40078), (580, 32477), (691, 27260), (940, 20039), (1363, 13820), (1382, 13630), (2726, 6910), (2764, 6815), (3455, 5452)]