25778840

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6257}}^1$

素因数の和:6371

約数の個数: 32

約数和(自身を含む): 58574880

約数和(自身を除く): 32796040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 6257, 12514, 25028, 31285, 50056, 62570, 125140, 250280, 644471, 1288942, 2577884, 3222355, 5155768, 6444710, 12889420, 25778840]

約数ペア:

[(1, 25778840), (2, 12889420), (4, 6444710), (5, 5155768), (8, 3222355), (10, 2577884), (20, 1288942), (40, 644471), (103, 250280), (206, 125140), (412, 62570), (515, 50056), (824, 31285), (1030, 25028), (2060, 12514), (4120, 6257)]