127920400

素因数分解:

$2^4\times 5^2\times {\mathrm{193}}^1\times {\mathrm{1657}}^1$

素因数の和:1868

約数の個数: 60

約数和(自身を含む): 309107572

約数和(自身を除く): 181187172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 193, 200, 386, 400, 772, 965, 1544, 1657, 1930, 3088, 3314, 3860, 4825, 6628, 7720, 8285, 9650, 13256, 15440, 16570, 19300, 26512, 33140, 38600, 41425, 66280, 77200, 82850, 132560, 165700, 319801, 331400, 639602, 662800, 1279204, 1599005, 2558408, 3198010, 5116816, 6396020, 7995025, 12792040, 15990050, 25584080, 31980100, 63960200, 127920400]

約数ペア:

[(1, 127920400), (2, 63960200), (4, 31980100), (5, 25584080), (8, 15990050), (10, 12792040), (16, 7995025), (20, 6396020), (25, 5116816), (40, 3198010), (50, 2558408), (80, 1599005), (100, 1279204), (193, 662800), (200, 639602), (386, 331400), (400, 319801), (772, 165700), (965, 132560), (1544, 82850), (1657, 77200), (1930, 66280), (3088, 41425), (3314, 38600), (3860, 33140), (4825, 26512), (6628, 19300), (7720, 16570), (8285, 15440), (9650, 13256)]