78285880

素因数分解:

$2^3\times 5^1\times {\mathrm{1957147}}^1$

素因数の和:1957158

約数の個数: 16

約数和(自身を含む): 176143320

約数和(自身を除く): 97857440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1957147, 3914294, 7828588, 9785735, 15657176, 19571470, 39142940, 78285880]

約数ペア:

[(1, 78285880), (2, 39142940), (4, 19571470), (5, 15657176), (8, 9785735), (10, 7828588), (20, 3914294), (40, 1957147)]