12648880

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3677}}^1$

素因数の和:3733

約数の個数: 40

約数和(自身を含む): 30100752

約数和(自身を除く): 17451872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3677, 7354, 14708, 18385, 29416, 36770, 58832, 73540, 147080, 158111, 294160, 316222, 632444, 790555, 1264888, 1581110, 2529776, 3162220, 6324440, 12648880]

約数ペア:

[(1, 12648880), (2, 6324440), (4, 3162220), (5, 2529776), (8, 1581110), (10, 1264888), (16, 790555), (20, 632444), (40, 316222), (43, 294160), (80, 158111), (86, 147080), (172, 73540), (215, 58832), (344, 36770), (430, 29416), (688, 18385), (860, 14708), (1720, 7354), (3440, 3677)]