223539880

素因数分解:

$2^3\times 5^1\times {\mathrm{857}}^1\times {\mathrm{6521}}^1$

素因数の和:7389

約数の個数: 32

約数和(自身を含む): 503628840

約数和(自身を除く): 280088960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 857, 1714, 3428, 4285, 6521, 6856, 8570, 13042, 17140, 26084, 32605, 34280, 52168, 65210, 130420, 260840, 5588497, 11176994, 22353988, 27942485, 44707976, 55884970, 111769940, 223539880]

約数ペア:

[(1, 223539880), (2, 111769940), (4, 55884970), (5, 44707976), (8, 27942485), (10, 22353988), (20, 11176994), (40, 5588497), (857, 260840), (1714, 130420), (3428, 65210), (4285, 52168), (6521, 34280), (6856, 32605), (8570, 26084), (13042, 17140)]