28303880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64327}}^1$

素因数の和:64349

約数の個数: 32

約数和(自身を含む): 69474240

約数和(自身を除く): 41170360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64327, 128654, 257308, 321635, 514616, 643270, 707597, 1286540, 1415194, 2573080, 2830388, 3537985, 5660776, 7075970, 14151940, 28303880]

約数ペア:

[(1, 28303880), (2, 14151940), (4, 7075970), (5, 5660776), (8, 3537985), (10, 2830388), (11, 2573080), (20, 1415194), (22, 1286540), (40, 707597), (44, 643270), (55, 514616), (88, 321635), (110, 257308), (220, 128654), (440, 64327)]