80203880

素因数分解:

$2^3\times 5^1\times {\mathrm{1327}}^1\times {\mathrm{1511}}^1$

素因数の和:2849

約数の個数: 32

約数和(自身を含む): 180714240

約数和(自身を除く): 100510360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1327, 1511, 2654, 3022, 5308, 6044, 6635, 7555, 10616, 12088, 13270, 15110, 26540, 30220, 53080, 60440, 2005097, 4010194, 8020388, 10025485, 16040776, 20050970, 40101940, 80203880]

約数ペア:

[(1, 80203880), (2, 40101940), (4, 20050970), (5, 16040776), (8, 10025485), (10, 8020388), (20, 4010194), (40, 2005097), (1327, 60440), (1511, 53080), (2654, 30220), (3022, 26540), (5308, 15110), (6044, 13270), (6635, 12088), (7555, 10616)]