28431390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72901}}^1$

素因数の和:72924

約数の個数: 32

約数和(自身を含む): 73485216

約数和(自身を除く): 45053826

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72901, 145802, 218703, 364505, 437406, 729010, 947713, 1093515, 1895426, 2187030, 2843139, 4738565, 5686278, 9477130, 14215695, 28431390]

約数ペア:

[(1, 28431390), (2, 14215695), (3, 9477130), (5, 5686278), (6, 4738565), (10, 2843139), (13, 2187030), (15, 1895426), (26, 1093515), (30, 947713), (39, 729010), (65, 437406), (78, 364505), (130, 218703), (195, 145802), (390, 72901)]