78007960

素因数分解:

$2^3\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{1499}}^1$

素因数の和:2811

約数の個数: 32

約数和(自身を含む): 175770000

約数和(自身を除く): 97762040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1301, 1499, 2602, 2998, 5204, 5996, 6505, 7495, 10408, 11992, 13010, 14990, 26020, 29980, 52040, 59960, 1950199, 3900398, 7800796, 9750995, 15601592, 19501990, 39003980, 78007960]

約数ペア:

[(1, 78007960), (2, 39003980), (4, 19501990), (5, 15601592), (8, 9750995), (10, 7800796), (20, 3900398), (40, 1950199), (1301, 59960), (1499, 52040), (2602, 29980), (2998, 26020), (5204, 14990), (5996, 13010), (6505, 11992), (7495, 10408)]