77812720

素因数分解:

$2^4\times 5^1\times {\mathrm{587}}^1\times {\mathrm{1657}}^1$

素因数の和:2257

約数の個数: 40

約数和(自身を含む): 181332144

約数和(自身を除く): 103519424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 587, 1174, 1657, 2348, 2935, 3314, 4696, 5870, 6628, 8285, 9392, 11740, 13256, 16570, 23480, 26512, 33140, 46960, 66280, 132560, 972659, 1945318, 3890636, 4863295, 7781272, 9726590, 15562544, 19453180, 38906360, 77812720]

約数ペア:

[(1, 77812720), (2, 38906360), (4, 19453180), (5, 15562544), (8, 9726590), (10, 7781272), (16, 4863295), (20, 3890636), (40, 1945318), (80, 972659), (587, 132560), (1174, 66280), (1657, 46960), (2348, 33140), (2935, 26512), (3314, 23480), (4696, 16570), (5870, 13256), (6628, 11740), (8285, 9392)]