1291840

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1$

素因数の和:395

約数の個数: 56

約数和(自身を含む): 3364992

約数和(自身を除く): 2073152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 367, 440, 704, 734, 880, 1468, 1760, 1835, 2936, 3520, 3670, 4037, 5872, 7340, 8074, 11744, 14680, 16148, 20185, 23488, 29360, 32296, 40370, 58720, 64592, 80740, 117440, 129184, 161480, 258368, 322960, 645920, 1291840]

約数ペア:

[(1, 1291840), (2, 645920), (4, 322960), (5, 258368), (8, 161480), (10, 129184), (11, 117440), (16, 80740), (20, 64592), (22, 58720), (32, 40370), (40, 32296), (44, 29360), (55, 23488), (64, 20185), (80, 16148), (88, 14680), (110, 11744), (160, 8074), (176, 7340), (220, 5872), (320, 4037), (352, 3670), (367, 3520), (440, 2936), (704, 1835), (734, 1760), (880, 1468)]