1620868

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 2986200

約数和(自身を除く): 1365332

約数列:

[1, 2, 4, 29, 58, 89, 116, 157, 178, 314, 356, 628, 2581, 4553, 5162, 9106, 10324, 13973, 18212, 27946, 55892, 405217, 810434, 1620868]

約数ペア:

[(1, 1620868), (2, 810434), (4, 405217), (29, 55892), (58, 27946), (89, 18212), (116, 13973), (157, 10324), (178, 9106), (314, 5162), (356, 4553), (628, 2581)]