12991720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{46399}}^1$

素因数の和:46417

約数の個数: 32

約数和(自身を含む): 33408000

約数和(自身を除く): 20416280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 46399, 92798, 185596, 231995, 324793, 371192, 463990, 649586, 927980, 1299172, 1623965, 1855960, 2598344, 3247930, 6495860, 12991720]

約数ペア:

[(1, 12991720), (2, 6495860), (4, 3247930), (5, 2598344), (7, 1855960), (8, 1623965), (10, 1299172), (14, 927980), (20, 649586), (28, 463990), (35, 371192), (40, 324793), (56, 231995), (70, 185596), (140, 92798), (280, 46399)]