191428520

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{7069}}^1$

素因数の和:7757

約数の個数: 32

約数和(自身を含む): 431411400

約数和(自身を除く): 239982880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 1354, 2708, 3385, 5416, 6770, 7069, 13540, 14138, 27080, 28276, 35345, 56552, 70690, 141380, 282760, 4785713, 9571426, 19142852, 23928565, 38285704, 47857130, 95714260, 191428520]

約数ペア:

[(1, 191428520), (2, 95714260), (4, 47857130), (5, 38285704), (8, 23928565), (10, 19142852), (20, 9571426), (40, 4785713), (677, 282760), (1354, 141380), (2708, 70690), (3385, 56552), (5416, 35345), (6770, 28276), (7069, 27080), (13540, 14138)]