12681656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2079

約数の個数: 32

約数和(自身を含む): 26040000

約数和(自身を除く): 13358344

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 1999, 3172, 3998, 6344, 7996, 15992, 25987, 51974, 103948, 121939, 207896, 243878, 487756, 975512, 1585207, 3170414, 6340828, 12681656]

約数ペア:

[(1, 12681656), (2, 6340828), (4, 3170414), (8, 1585207), (13, 975512), (26, 487756), (52, 243878), (61, 207896), (104, 121939), (122, 103948), (244, 51974), (488, 25987), (793, 15992), (1586, 7996), (1999, 6344), (3172, 3998)]