18941680

素因数分解:

$2^4\times 5^1\times {\mathrm{236771}}^1$

素因数の和:236784

約数の個数: 20

約数和(自身を含む): 44039592

約数和(自身を除く): 25097912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236771, 473542, 947084, 1183855, 1894168, 2367710, 3788336, 4735420, 9470840, 18941680]

約数ペア:

[(1, 18941680), (2, 9470840), (4, 4735420), (5, 3788336), (8, 2367710), (10, 1894168), (16, 1183855), (20, 947084), (40, 473542), (80, 236771)]