19638530

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 36590400

約数和(自身を除く): 16951870

約数列:

[1, 2, 5, 10, 43, 86, 109, 215, 218, 419, 430, 545, 838, 1090, 2095, 4190, 4687, 9374, 18017, 23435, 36034, 45671, 46870, 90085, 91342, 180170, 228355, 456710, 1963853, 3927706, 9819265, 19638530]

約数ペア:

[(1, 19638530), (2, 9819265), (5, 3927706), (10, 1963853), (43, 456710), (86, 228355), (109, 180170), (215, 91342), (218, 90085), (419, 46870), (430, 45671), (545, 36034), (838, 23435), (1090, 18017), (2095, 9374), (4190, 4687)]