80928520

素因数分解:

$2^3\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{1607}}^1$

素因数の和:2877

約数の個数: 32

約数和(自身を含む): 182347200

約数和(自身を除く): 101418680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1259, 1607, 2518, 3214, 5036, 6295, 6428, 8035, 10072, 12590, 12856, 16070, 25180, 32140, 50360, 64280, 2023213, 4046426, 8092852, 10116065, 16185704, 20232130, 40464260, 80928520]

約数ペア:

[(1, 80928520), (2, 40464260), (4, 20232130), (5, 16185704), (8, 10116065), (10, 8092852), (20, 4046426), (40, 2023213), (1259, 64280), (1607, 50360), (2518, 32140), (3214, 25180), (5036, 16070), (6295, 12856), (6428, 12590), (8035, 10072)]