139275920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{248707}}^1$

素因数の和:248727

約数の個数: 40

約数和(自身を含む): 370077504

約数和(自身を除く): 230801584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 248707, 497414, 994828, 1243535, 1740949, 1989656, 2487070, 3481898, 3979312, 4974140, 6963796, 8704745, 9948280, 13927592, 17409490, 19896560, 27855184, 34818980, 69637960, 139275920]

約数ペア:

[(1, 139275920), (2, 69637960), (4, 34818980), (5, 27855184), (7, 19896560), (8, 17409490), (10, 13927592), (14, 9948280), (16, 8704745), (20, 6963796), (28, 4974140), (35, 3979312), (40, 3481898), (56, 2487070), (70, 1989656), (80, 1740949), (112, 1243535), (140, 994828), (280, 497414), (560, 248707)]