28000390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{557}}^1$

素因数の和:1032

約数の個数: 32

約数和(自身を含む): 55201824

約数和(自身を除く): 27201434

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 457, 557, 914, 1114, 2285, 2785, 4570, 5027, 5570, 6127, 10054, 12254, 25135, 30635, 50270, 61270, 254549, 509098, 1272745, 2545490, 2800039, 5600078, 14000195, 28000390]

約数ペア:

[(1, 28000390), (2, 14000195), (5, 5600078), (10, 2800039), (11, 2545490), (22, 1272745), (55, 509098), (110, 254549), (457, 61270), (557, 50270), (914, 30635), (1114, 25135), (2285, 12254), (2785, 10054), (4570, 6127), (5027, 5570)]