16818800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2213}}^1$

素因数の和:2250

約数の個数: 60

約数和(自身を含む): 42553080

約数和(自身を除く): 25734280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 2213, 3800, 4426, 7600, 8852, 11065, 17704, 22130, 35408, 42047, 44260, 55325, 84094, 88520, 110650, 168188, 177040, 210235, 221300, 336376, 420470, 442600, 672752, 840940, 885200, 1051175, 1681880, 2102350, 3363760, 4204700, 8409400, 16818800]

約数ペア:

[(1, 16818800), (2, 8409400), (4, 4204700), (5, 3363760), (8, 2102350), (10, 1681880), (16, 1051175), (19, 885200), (20, 840940), (25, 672752), (38, 442600), (40, 420470), (50, 336376), (76, 221300), (80, 210235), (95, 177040), (100, 168188), (152, 110650), (190, 88520), (200, 84094), (304, 55325), (380, 44260), (400, 42047), (475, 35408), (760, 22130), (950, 17704), (1520, 11065), (1900, 8852), (2213, 7600), (3800, 4426)]