78344560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139901}}^1$

素因数の和:139921

約数の個数: 40

約数和(自身を含む): 208174176

約数和(自身を除く): 129829616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139901, 279802, 559604, 699505, 979307, 1119208, 1399010, 1958614, 2238416, 2798020, 3917228, 4896535, 5596040, 7834456, 9793070, 11192080, 15668912, 19586140, 39172280, 78344560]

約数ペア:

[(1, 78344560), (2, 39172280), (4, 19586140), (5, 15668912), (7, 11192080), (8, 9793070), (10, 7834456), (14, 5596040), (16, 4896535), (20, 3917228), (28, 2798020), (35, 2238416), (40, 1958614), (56, 1399010), (70, 1119208), (80, 979307), (112, 699505), (140, 559604), (280, 279802), (560, 139901)]