79951880

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{6427}}^1$

素因数の和:6749

約数の個数: 32

約数和(自身を含む): 180498240

約数和(自身を除く): 100546360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 6427, 12440, 12854, 25708, 32135, 51416, 64270, 128540, 257080, 1998797, 3997594, 7995188, 9993985, 15990376, 19987970, 39975940, 79951880]

約数ペア:

[(1, 79951880), (2, 39975940), (4, 19987970), (5, 15990376), (8, 9993985), (10, 7995188), (20, 3997594), (40, 1998797), (311, 257080), (622, 128540), (1244, 64270), (1555, 51416), (2488, 32135), (3110, 25708), (6220, 12854), (6427, 12440)]