19180940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{30937}}^1$

素因数の和:30977

約数の個数: 24

約数和(自身を含む): 41580672

約数和(自身を除く): 22399732

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 30937, 61874, 123748, 154685, 309370, 618740, 959047, 1918094, 3836188, 4795235, 9590470, 19180940]

約数ペア:

[(1, 19180940), (2, 9590470), (4, 4795235), (5, 3836188), (10, 1918094), (20, 959047), (31, 618740), (62, 309370), (124, 154685), (155, 123748), (310, 61874), (620, 30937)]