25363312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2081

約数の個数: 40

約数和(自身を含む): 53816000

約数和(自身を除く): 28452688

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 1999, 3172, 3998, 6344, 7996, 12688, 15992, 25987, 31984, 51974, 103948, 121939, 207896, 243878, 415792, 487756, 975512, 1585207, 1951024, 3170414, 6340828, 12681656, 25363312]

約数ペア:

[(1, 25363312), (2, 12681656), (4, 6340828), (8, 3170414), (13, 1951024), (16, 1585207), (26, 975512), (52, 487756), (61, 415792), (104, 243878), (122, 207896), (208, 121939), (244, 103948), (488, 51974), (793, 31984), (976, 25987), (1586, 15992), (1999, 12688), (3172, 7996), (3998, 6344)]