2187780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{5209}}^1$

素因数の和:5228

約数の個数: 48

約数和(自身を含む): 7002240

約数和(自身を除く): 4814460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 5209, 10418, 15627, 20836, 26045, 31254, 36463, 52090, 62508, 72926, 78135, 104180, 109389, 145852, 156270, 182315, 218778, 312540, 364630, 437556, 546945, 729260, 1093890, 2187780]

約数ペア:

[(1, 2187780), (2, 1093890), (3, 729260), (4, 546945), (5, 437556), (6, 364630), (7, 312540), (10, 218778), (12, 182315), (14, 156270), (15, 145852), (20, 109389), (21, 104180), (28, 78135), (30, 72926), (35, 62508), (42, 52090), (60, 36463), (70, 31254), (84, 26045), (105, 20836), (140, 15627), (210, 10418), (420, 5209)]