81647340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1360789}}^1$

素因数の和:1360801

約数の個数: 24

約数和(自身を含む): 228612720

約数和(自身を除く): 146965380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1360789, 2721578, 4082367, 5443156, 6803945, 8164734, 13607890, 16329468, 20411835, 27215780, 40823670, 81647340]

約数ペア:

[(1, 81647340), (2, 40823670), (3, 27215780), (4, 20411835), (5, 16329468), (6, 13607890), (10, 8164734), (12, 6803945), (15, 5443156), (20, 4082367), (30, 2721578), (60, 1360789)]