80778350

素因数分解:

$2^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{12721}}^1$

素因数の和:12860

約数の個数: 24

約数和(自身を含む): 151442688

約数和(自身を除く): 70664338

約数列:

[1, 2, 5, 10, 25, 50, 127, 254, 635, 1270, 3175, 6350, 12721, 25442, 63605, 127210, 318025, 636050, 1615567, 3231134, 8077835, 16155670, 40389175, 80778350]

約数ペア:

[(1, 80778350), (2, 40389175), (5, 16155670), (10, 8077835), (25, 3231134), (50, 1615567), (127, 636050), (254, 318025), (635, 127210), (1270, 63605), (3175, 25442), (6350, 12721)]