78583880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47917}}^1$

素因数の和:47969

約数の個数: 32

約数和(自身を含む): 181130040

約数和(自身を除く): 102546160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 47917, 95834, 191668, 239585, 383336, 479170, 958340, 1916680, 1964597, 3929194, 7858388, 9822985, 15716776, 19645970, 39291940, 78583880]

約数ペア:

[(1, 78583880), (2, 39291940), (4, 19645970), (5, 15716776), (8, 9822985), (10, 7858388), (20, 3929194), (40, 1964597), (41, 1916680), (82, 958340), (164, 479170), (205, 383336), (328, 239585), (410, 191668), (820, 95834), (1640, 47917)]