20376512

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1289}}^1$

素因数の和:1333

約数の個数: 56

約数和(自身を含む): 45872400

約数和(自身を除く): 25495888

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 152, 208, 247, 304, 416, 494, 608, 832, 988, 1216, 1289, 1976, 2578, 3952, 5156, 7904, 10312, 15808, 16757, 20624, 24491, 33514, 41248, 48982, 67028, 82496, 97964, 134056, 195928, 268112, 318383, 391856, 536224, 636766, 783712, 1072448, 1273532, 1567424, 2547064, 5094128, 10188256, 20376512]

約数ペア:

[(1, 20376512), (2, 10188256), (4, 5094128), (8, 2547064), (13, 1567424), (16, 1273532), (19, 1072448), (26, 783712), (32, 636766), (38, 536224), (52, 391856), (64, 318383), (76, 268112), (104, 195928), (152, 134056), (208, 97964), (247, 82496), (304, 67028), (416, 48982), (494, 41248), (608, 33514), (832, 24491), (988, 20624), (1216, 16757), (1289, 15808), (1976, 10312), (2578, 7904), (3952, 5156)]