12985020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{72139}}^1$

素因数の和:72154

約数の個数: 36

約数和(自身を含む): 39388440

約数和(自身を除く): 26403420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 72139, 144278, 216417, 288556, 360695, 432834, 649251, 721390, 865668, 1082085, 1298502, 1442780, 2164170, 2597004, 3246255, 4328340, 6492510, 12985020]

約数ペア:

[(1, 12985020), (2, 6492510), (3, 4328340), (4, 3246255), (5, 2597004), (6, 2164170), (9, 1442780), (10, 1298502), (12, 1082085), (15, 865668), (18, 721390), (20, 649251), (30, 432834), (36, 360695), (45, 288556), (60, 216417), (90, 144278), (180, 72139)]