78579520

素因数分解:

$2^6\times 5^1\times {\mathrm{245561}}^1$

素因数の和:245578

約数の個数: 28

約数和(自身を含む): 187118244

約数和(自身を除く): 108538724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 245561, 491122, 982244, 1227805, 1964488, 2455610, 3928976, 4911220, 7857952, 9822440, 15715904, 19644880, 39289760, 78579520]

約数ペア:

[(1, 78579520), (2, 39289760), (4, 19644880), (5, 15715904), (8, 9822440), (10, 7857952), (16, 4911220), (20, 3928976), (32, 2455610), (40, 1964488), (64, 1227805), (80, 982244), (160, 491122), (320, 245561)]