12728540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1231}}^1$

素因数の和:1298

約数の個数: 48

約数和(自身を含む): 29804544

約数和(自身を除く): 17076004

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 1231, 2068, 2462, 2585, 4924, 5170, 6155, 10340, 12310, 13541, 24620, 27082, 54164, 57857, 67705, 115714, 135410, 231428, 270820, 289285, 578570, 636427, 1157140, 1272854, 2545708, 3182135, 6364270, 12728540]

約数ペア:

[(1, 12728540), (2, 6364270), (4, 3182135), (5, 2545708), (10, 1272854), (11, 1157140), (20, 636427), (22, 578570), (44, 289285), (47, 270820), (55, 231428), (94, 135410), (110, 115714), (188, 67705), (220, 57857), (235, 54164), (470, 27082), (517, 24620), (940, 13541), (1034, 12310), (1231, 10340), (2068, 6155), (2462, 5170), (2585, 4924)]