1561340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 3677184

約数和(自身を除く): 2115844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 151, 188, 220, 235, 302, 470, 517, 604, 755, 940, 1034, 1510, 1661, 2068, 2585, 3020, 3322, 5170, 6644, 7097, 8305, 10340, 14194, 16610, 28388, 33220, 35485, 70970, 78067, 141940, 156134, 312268, 390335, 780670, 1561340]

約数ペア:

[(1, 1561340), (2, 780670), (4, 390335), (5, 312268), (10, 156134), (11, 141940), (20, 78067), (22, 70970), (44, 35485), (47, 33220), (55, 28388), (94, 16610), (110, 14194), (151, 10340), (188, 8305), (220, 7097), (235, 6644), (302, 5170), (470, 3322), (517, 3020), (604, 2585), (755, 2068), (940, 1661), (1034, 1510)]