28447760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32327}}^1$

素因数の和:32351

約数の個数: 40

約数和(自身を含む): 72156096

約数和(自身を除く): 43708336

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32327, 64654, 129308, 161635, 258616, 323270, 355597, 517232, 646540, 711194, 1293080, 1422388, 1777985, 2586160, 2844776, 3555970, 5689552, 7111940, 14223880, 28447760]

約数ペア:

[(1, 28447760), (2, 14223880), (4, 7111940), (5, 5689552), (8, 3555970), (10, 2844776), (11, 2586160), (16, 1777985), (20, 1422388), (22, 1293080), (40, 711194), (44, 646540), (55, 517232), (80, 355597), (88, 323270), (110, 258616), (176, 161635), (220, 129308), (440, 64654), (880, 32327)]