2040471880

素因数分解:

$2^3\times 5^1\times {\mathrm{2803}}^1\times {\mathrm{18199}}^1$

素因数の和:21013

約数の個数: 32

約数和(自身を含む): 4592952000

約数和(自身を除く): 2552480120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2803, 5606, 11212, 14015, 18199, 22424, 28030, 36398, 56060, 72796, 90995, 112120, 145592, 181990, 363980, 727960, 51011797, 102023594, 204047188, 255058985, 408094376, 510117970, 1020235940, 2040471880]

約数ペア:

[(1, 2040471880), (2, 1020235940), (4, 510117970), (5, 408094376), (8, 255058985), (10, 204047188), (20, 102023594), (40, 51011797), (2803, 727960), (5606, 363980), (11212, 181990), (14015, 145592), (18199, 112120), (22424, 90995), (28030, 72796), (36398, 56060)]