22278920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4007}}^1$

素因数の和:4157

約数の個数: 32

約数和(自身を含む): 50500800

約数和(自身を除く): 28221880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 4007, 5560, 8014, 16028, 20035, 32056, 40070, 80140, 160280, 556973, 1113946, 2227892, 2784865, 4455784, 5569730, 11139460, 22278920]

約数ペア:

[(1, 22278920), (2, 11139460), (4, 5569730), (5, 4455784), (8, 2784865), (10, 2227892), (20, 1113946), (40, 556973), (139, 160280), (278, 80140), (556, 40070), (695, 32056), (1112, 20035), (1390, 16028), (2780, 8014), (4007, 5560)]