12924400

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:506

約数の個数: 60

約数和(自身を含む): 31520800

約数和(自身を除く): 18596400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 316, 395, 400, 409, 632, 790, 818, 1264, 1580, 1636, 1975, 2045, 3160, 3272, 3950, 4090, 6320, 6544, 7900, 8180, 10225, 15800, 16360, 20450, 31600, 32311, 32720, 40900, 64622, 81800, 129244, 161555, 163600, 258488, 323110, 516976, 646220, 807775, 1292440, 1615550, 2584880, 3231100, 6462200, 12924400]

約数ペア:

[(1, 12924400), (2, 6462200), (4, 3231100), (5, 2584880), (8, 1615550), (10, 1292440), (16, 807775), (20, 646220), (25, 516976), (40, 323110), (50, 258488), (79, 163600), (80, 161555), (100, 129244), (158, 81800), (200, 64622), (316, 40900), (395, 32720), (400, 32311), (409, 31600), (632, 20450), (790, 16360), (818, 15800), (1264, 10225), (1580, 8180), (1636, 7900), (1975, 6544), (2045, 6320), (3160, 4090), (3272, 3950)]