13128440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25247}}^1$

素因数の和:25271

約数の個数: 32

約数和(自身を含む): 31812480

約数和(自身を除く): 18684040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 25247, 50494, 100988, 126235, 201976, 252470, 328211, 504940, 656422, 1009880, 1312844, 1641055, 2625688, 3282110, 6564220, 13128440]

約数ペア:

[(1, 13128440), (2, 6564220), (4, 3282110), (5, 2625688), (8, 1641055), (10, 1312844), (13, 1009880), (20, 656422), (26, 504940), (40, 328211), (52, 252470), (65, 201976), (104, 126235), (130, 100988), (260, 50494), (520, 25247)]