21689880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180749}}^1$

素因数の和:180763

約数の個数: 32

約数和(自身を含む): 65070000

約数和(自身を除く): 43380120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180749, 361498, 542247, 722996, 903745, 1084494, 1445992, 1807490, 2168988, 2711235, 3614980, 4337976, 5422470, 7229960, 10844940, 21689880]

約数ペア:

[(1, 21689880), (2, 10844940), (3, 7229960), (4, 5422470), (5, 4337976), (6, 3614980), (8, 2711235), (10, 2168988), (12, 1807490), (15, 1445992), (20, 1084494), (24, 903745), (30, 722996), (40, 542247), (60, 361498), (120, 180749)]