80801200

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{2557}}^1$

素因数の和:2654

約数の個数: 60

約数和(自身を含む): 196659040

約数和(自身を除く): 115857840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 316, 395, 400, 632, 790, 1264, 1580, 1975, 2557, 3160, 3950, 5114, 6320, 7900, 10228, 12785, 15800, 20456, 25570, 31600, 40912, 51140, 63925, 102280, 127850, 202003, 204560, 255700, 404006, 511400, 808012, 1010015, 1022800, 1616024, 2020030, 3232048, 4040060, 5050075, 8080120, 10100150, 16160240, 20200300, 40400600, 80801200]

約数ペア:

[(1, 80801200), (2, 40400600), (4, 20200300), (5, 16160240), (8, 10100150), (10, 8080120), (16, 5050075), (20, 4040060), (25, 3232048), (40, 2020030), (50, 1616024), (79, 1022800), (80, 1010015), (100, 808012), (158, 511400), (200, 404006), (316, 255700), (395, 204560), (400, 202003), (632, 127850), (790, 102280), (1264, 63925), (1580, 51140), (1975, 40912), (2557, 31600), (3160, 25570), (3950, 20456), (5114, 15800), (6320, 12785), (7900, 10228)]