28968290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 57592296

約数和(自身を除く): 28624006

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 169, 281, 305, 338, 562, 610, 793, 845, 1405, 1586, 1690, 2810, 3653, 3965, 7306, 7930, 10309, 17141, 18265, 20618, 34282, 36530, 47489, 51545, 85705, 94978, 103090, 171410, 222833, 237445, 445666, 474890, 1114165, 2228330, 2896829, 5793658, 14484145, 28968290]

約数ペア:

[(1, 28968290), (2, 14484145), (5, 5793658), (10, 2896829), (13, 2228330), (26, 1114165), (61, 474890), (65, 445666), (122, 237445), (130, 222833), (169, 171410), (281, 103090), (305, 94978), (338, 85705), (562, 51545), (610, 47489), (793, 36530), (845, 34282), (1405, 20618), (1586, 18265), (1690, 17141), (2810, 10309), (3653, 7930), (3965, 7306)]