12648560

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{709}}^1$

素因数の和:945

約数の個数: 40

約数和(自身を含む): 29581440

約数和(自身を除く): 16932880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 709, 892, 1115, 1418, 1784, 2230, 2836, 3545, 3568, 4460, 5672, 7090, 8920, 11344, 14180, 17840, 28360, 56720, 158107, 316214, 632428, 790535, 1264856, 1581070, 2529712, 3162140, 6324280, 12648560]

約数ペア:

[(1, 12648560), (2, 6324280), (4, 3162140), (5, 2529712), (8, 1581070), (10, 1264856), (16, 790535), (20, 632428), (40, 316214), (80, 158107), (223, 56720), (446, 28360), (709, 17840), (892, 14180), (1115, 11344), (1418, 8920), (1784, 7090), (2230, 5672), (2836, 4460), (3545, 3568)]