18944360

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3457}}^1$

素因数の和:3605

約数の個数: 32

約数和(自身を含む): 42948360

約数和(自身を除く): 24004000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3457, 5480, 6914, 13828, 17285, 27656, 34570, 69140, 138280, 473609, 947218, 1894436, 2368045, 3788872, 4736090, 9472180, 18944360]

約数ペア:

[(1, 18944360), (2, 9472180), (4, 4736090), (5, 3788872), (8, 2368045), (10, 1894436), (20, 947218), (40, 473609), (137, 138280), (274, 69140), (548, 34570), (685, 27656), (1096, 17285), (1370, 13828), (2740, 6914), (3457, 5480)]