255781568

素因数分解:

$2^6\times 7^2\times {\mathrm{81563}}^1$

素因数の和:81589

約数の個数: 42

約数和(自身を含む): 590441796

約数和(自身を除く): 334660228

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 81563, 163126, 326252, 570941, 652504, 1141882, 1305008, 2283764, 2610016, 3996587, 4567528, 5220032, 7993174, 9135056, 15986348, 18270112, 31972696, 36540224, 63945392, 127890784, 255781568]

約数ペア:

[(1, 255781568), (2, 127890784), (4, 63945392), (7, 36540224), (8, 31972696), (14, 18270112), (16, 15986348), (28, 9135056), (32, 7993174), (49, 5220032), (56, 4567528), (64, 3996587), (98, 2610016), (112, 2283764), (196, 1305008), (224, 1141882), (392, 652504), (448, 570941), (784, 326252), (1568, 163126), (3136, 81563)]