18288940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53791}}^1$

素因数の和:53817

約数の個数: 24

約数和(自身を含む): 40666752

約数和(自身を除く): 22377812

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 53791, 107582, 215164, 268955, 537910, 914447, 1075820, 1828894, 3657788, 4572235, 9144470, 18288940]

約数ペア:

[(1, 18288940), (2, 9144470), (4, 4572235), (5, 3657788), (10, 1828894), (17, 1075820), (20, 914447), (34, 537910), (68, 268955), (85, 215164), (170, 107582), (340, 53791)]