20678880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{643}}^1$

素因数の和:728

約数の個数: 96

約数和(自身を含む): 66213504

約数和(自身を除く): 45534624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 67, 80, 96, 120, 134, 160, 201, 240, 268, 335, 402, 480, 536, 643, 670, 804, 1005, 1072, 1286, 1340, 1608, 1929, 2010, 2144, 2572, 2680, 3215, 3216, 3858, 4020, 5144, 5360, 6430, 6432, 7716, 8040, 9645, 10288, 10720, 12860, 15432, 16080, 19290, 20576, 25720, 30864, 32160, 38580, 43081, 51440, 61728, 77160, 86162, 102880, 129243, 154320, 172324, 215405, 258486, 308640, 344648, 430810, 516972, 646215, 689296, 861620, 1033944, 1292430, 1378592, 1723240, 2067888, 2584860, 3446480, 4135776, 5169720, 6892960, 10339440, 20678880]

約数ペア:

[(1, 20678880), (2, 10339440), (3, 6892960), (4, 5169720), (5, 4135776), (6, 3446480), (8, 2584860), (10, 2067888), (12, 1723240), (15, 1378592), (16, 1292430), (20, 1033944), (24, 861620), (30, 689296), (32, 646215), (40, 516972), (48, 430810), (60, 344648), (67, 308640), (80, 258486), (96, 215405), (120, 172324), (134, 154320), (160, 129243), (201, 102880), (240, 86162), (268, 77160), (335, 61728), (402, 51440), (480, 43081), (536, 38580), (643, 32160), (670, 30864), (804, 25720), (1005, 20576), (1072, 19290), (1286, 16080), (1340, 15432), (1608, 12860), (1929, 10720), (2010, 10288), (2144, 9645), (2572, 8040), (2680, 7716), (3215, 6432), (3216, 6430), (3858, 5360), (4020, 5144)]