18856480

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1759}}^1$

素因数の和:1841

約数の個数: 48

約数和(自身を含む): 45239040

約数和(自身を除く): 26382560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 1759, 2144, 2680, 3518, 5360, 7036, 8795, 10720, 14072, 17590, 28144, 35180, 56288, 70360, 117853, 140720, 235706, 281440, 471412, 589265, 942824, 1178530, 1885648, 2357060, 3771296, 4714120, 9428240, 18856480]

約数ペア:

[(1, 18856480), (2, 9428240), (4, 4714120), (5, 3771296), (8, 2357060), (10, 1885648), (16, 1178530), (20, 942824), (32, 589265), (40, 471412), (67, 281440), (80, 235706), (134, 140720), (160, 117853), (268, 70360), (335, 56288), (536, 35180), (670, 28144), (1072, 17590), (1340, 14072), (1759, 10720), (2144, 8795), (2680, 7036), (3518, 5360)]