1211700440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{704477}}^1$

素因数の和:704531

約数の個数: 32

約数和(自身を含む): 2789732880

約数和(自身を除く): 1578032440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 704477, 1408954, 2817908, 3522385, 5635816, 7044770, 14089540, 28179080, 30292511, 60585022, 121170044, 151462555, 242340088, 302925110, 605850220, 1211700440]

約数ペア:

[(1, 1211700440), (2, 605850220), (4, 302925110), (5, 242340088), (8, 151462555), (10, 121170044), (20, 60585022), (40, 30292511), (43, 28179080), (86, 14089540), (172, 7044770), (215, 5635816), (344, 3522385), (430, 2817908), (860, 1408954), (1720, 704477)]