79989200

素因数分解:

$2^4\times 5^2\times {\mathrm{311}}^1\times {\mathrm{643}}^1$

素因数の和:972

約数の個数: 60

約数和(自身を含む): 193091808

約数和(自身を除く): 113102608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 311, 400, 622, 643, 1244, 1286, 1555, 2488, 2572, 3110, 3215, 4976, 5144, 6220, 6430, 7775, 10288, 12440, 12860, 15550, 16075, 24880, 25720, 31100, 32150, 51440, 62200, 64300, 124400, 128600, 199973, 257200, 399946, 799892, 999865, 1599784, 1999730, 3199568, 3999460, 4999325, 7998920, 9998650, 15997840, 19997300, 39994600, 79989200]

約数ペア:

[(1, 79989200), (2, 39994600), (4, 19997300), (5, 15997840), (8, 9998650), (10, 7998920), (16, 4999325), (20, 3999460), (25, 3199568), (40, 1999730), (50, 1599784), (80, 999865), (100, 799892), (200, 399946), (311, 257200), (400, 199973), (622, 128600), (643, 124400), (1244, 64300), (1286, 62200), (1555, 51440), (2488, 32150), (2572, 31100), (3110, 25720), (3215, 24880), (4976, 16075), (5144, 15550), (6220, 12860), (6430, 12440), (7775, 10288)]