42505520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12959}}^1$

素因数の和:13013

約数の個数: 40

約数和(自身を含む): 101243520

約数和(自身を除く): 58738000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 12959, 25918, 51836, 64795, 103672, 129590, 207344, 259180, 518360, 531319, 1036720, 1062638, 2125276, 2656595, 4250552, 5313190, 8501104, 10626380, 21252760, 42505520]

約数ペア:

[(1, 42505520), (2, 21252760), (4, 10626380), (5, 8501104), (8, 5313190), (10, 4250552), (16, 2656595), (20, 2125276), (40, 1062638), (41, 1036720), (80, 531319), (82, 518360), (164, 259180), (205, 207344), (328, 129590), (410, 103672), (656, 64795), (820, 51836), (1640, 25918), (3280, 12959)]