805938280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{411193}}^1$

素因数の和:411218

約数の個数: 48

約数和(自身を含む): 2109425220

約数和(自身を除く): 1303486940

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 411193, 822386, 1644772, 2055965, 2878351, 3289544, 4111930, 5756702, 8223860, 11513404, 14391755, 16447720, 20148457, 23026808, 28783510, 40296914, 57567020, 80593828, 100742285, 115134040, 161187656, 201484570, 402969140, 805938280]

約数ペア:

[(1, 805938280), (2, 402969140), (4, 201484570), (5, 161187656), (7, 115134040), (8, 100742285), (10, 80593828), (14, 57567020), (20, 40296914), (28, 28783510), (35, 23026808), (40, 20148457), (49, 16447720), (56, 14391755), (70, 11513404), (98, 8223860), (140, 5756702), (196, 4111930), (245, 3289544), (280, 2878351), (392, 2055965), (490, 1644772), (980, 822386), (1960, 411193)]