15851605

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 25280640

約数和(自身を除く): 9429035

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 121, 133, 197, 209, 385, 605, 665, 847, 985, 1045, 1379, 1463, 2167, 2299, 3743, 4235, 6895, 7315, 10835, 11495, 15169, 16093, 18715, 23837, 26201, 41173, 75845, 80465, 119185, 131005, 166859, 205865, 288211, 452903, 834295, 1441055, 2264515, 3170321, 15851605]

約数ペア:

[(1, 15851605), (5, 3170321), (7, 2264515), (11, 1441055), (19, 834295), (35, 452903), (55, 288211), (77, 205865), (95, 166859), (121, 131005), (133, 119185), (197, 80465), (209, 75845), (385, 41173), (605, 26201), (665, 23837), (847, 18715), (985, 16093), (1045, 15169), (1379, 11495), (1463, 10835), (2167, 7315), (2299, 6895), (3743, 4235)]