68790800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{13229}}^1$

素因数の和:13260

約数の個数: 60

約数和(自身を含む): 177996420

約数和(自身を除く): 109205620

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 13229, 26458, 52916, 66145, 105832, 132290, 171977, 211664, 264580, 330725, 343954, 529160, 661450, 687908, 859885, 1058320, 1322900, 1375816, 1719770, 2645800, 2751632, 3439540, 4299425, 5291600, 6879080, 8598850, 13758160, 17197700, 34395400, 68790800]

約数ペア:

[(1, 68790800), (2, 34395400), (4, 17197700), (5, 13758160), (8, 8598850), (10, 6879080), (13, 5291600), (16, 4299425), (20, 3439540), (25, 2751632), (26, 2645800), (40, 1719770), (50, 1375816), (52, 1322900), (65, 1058320), (80, 859885), (100, 687908), (104, 661450), (130, 529160), (200, 343954), (208, 330725), (260, 264580), (325, 211664), (400, 171977), (520, 132290), (650, 105832), (1040, 66145), (1300, 52916), (2600, 26458), (5200, 13229)]