28123880

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{6571}}^1$

素因数の和:6689

約数の個数: 32

約数和(自身を含む): 63879840

約数和(自身を除く): 35755960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 6571, 13142, 26284, 32855, 52568, 65710, 131420, 262840, 703097, 1406194, 2812388, 3515485, 5624776, 7030970, 14061940, 28123880]

約数ペア:

[(1, 28123880), (2, 14061940), (4, 7030970), (5, 5624776), (8, 3515485), (10, 2812388), (20, 1406194), (40, 703097), (107, 262840), (214, 131420), (428, 65710), (535, 52568), (856, 32855), (1070, 26284), (2140, 13142), (4280, 6571)]