1788820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 4209408

約数和(自身を除く): 2420588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 173, 188, 220, 235, 346, 470, 517, 692, 865, 940, 1034, 1730, 1903, 2068, 2585, 3460, 3806, 5170, 7612, 8131, 9515, 10340, 16262, 19030, 32524, 38060, 40655, 81310, 89441, 162620, 178882, 357764, 447205, 894410, 1788820]

約数ペア:

[(1, 1788820), (2, 894410), (4, 447205), (5, 357764), (10, 178882), (11, 162620), (20, 89441), (22, 81310), (44, 40655), (47, 38060), (55, 32524), (94, 19030), (110, 16262), (173, 10340), (188, 9515), (220, 8131), (235, 7612), (346, 5170), (470, 3806), (517, 3460), (692, 2585), (865, 2068), (940, 1903), (1034, 1730)]