21779760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90749}}^1$

素因数の和:90765

約数の個数: 40

約数和(自身を含む): 67518000

約数和(自身を除く): 45738240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90749, 181498, 272247, 362996, 453745, 544494, 725992, 907490, 1088988, 1361235, 1451984, 1814980, 2177976, 2722470, 3629960, 4355952, 5444940, 7259920, 10889880, 21779760]

約数ペア:

[(1, 21779760), (2, 10889880), (3, 7259920), (4, 5444940), (5, 4355952), (6, 3629960), (8, 2722470), (10, 2177976), (12, 1814980), (15, 1451984), (16, 1361235), (20, 1088988), (24, 907490), (30, 725992), (40, 544494), (48, 453745), (60, 362996), (80, 272247), (120, 181498), (240, 90749)]