77992880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139273}}^1$

素因数の和:139293

約数の個数: 40

約数和(自身を含む): 207239712

約数和(自身を除く): 129246832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139273, 278546, 557092, 696365, 974911, 1114184, 1392730, 1949822, 2228368, 2785460, 3899644, 4874555, 5570920, 7799288, 9749110, 11141840, 15598576, 19498220, 38996440, 77992880]

約数ペア:

[(1, 77992880), (2, 38996440), (4, 19498220), (5, 15598576), (7, 11141840), (8, 9749110), (10, 7799288), (14, 5570920), (16, 4874555), (20, 3899644), (28, 2785460), (35, 2228368), (40, 1949822), (56, 1392730), (70, 1114184), (80, 974911), (112, 696365), (140, 557092), (280, 278546), (560, 139273)]