25725856

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 72

約数和(自身を含む): 56445984

約数和(自身を除く): 30720128

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 71, 104, 134, 142, 169, 208, 268, 284, 338, 416, 536, 568, 676, 871, 923, 1072, 1136, 1352, 1742, 1846, 2144, 2272, 2704, 3484, 3692, 4757, 5408, 6968, 7384, 9514, 11323, 11999, 13936, 14768, 19028, 22646, 23998, 27872, 29536, 38056, 45292, 47996, 61841, 76112, 90584, 95992, 123682, 152224, 181168, 191984, 247364, 362336, 383968, 494728, 803933, 989456, 1607866, 1978912, 3215732, 6431464, 12862928, 25725856]

約数ペア:

[(1, 25725856), (2, 12862928), (4, 6431464), (8, 3215732), (13, 1978912), (16, 1607866), (26, 989456), (32, 803933), (52, 494728), (67, 383968), (71, 362336), (104, 247364), (134, 191984), (142, 181168), (169, 152224), (208, 123682), (268, 95992), (284, 90584), (338, 76112), (416, 61841), (536, 47996), (568, 45292), (676, 38056), (871, 29536), (923, 27872), (1072, 23998), (1136, 22646), (1352, 19028), (1742, 14768), (1846, 13936), (2144, 11999), (2272, 11323), (2704, 9514), (3484, 7384), (3692, 6968), (4757, 5408)]