42378620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124643}}^1$

素因数の和:124669

約数の個数: 24

約数和(自身を含む): 94230864

約数和(自身を除く): 51852244

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 124643, 249286, 498572, 623215, 1246430, 2118931, 2492860, 4237862, 8475724, 10594655, 21189310, 42378620]

約数ペア:

[(1, 42378620), (2, 21189310), (4, 10594655), (5, 8475724), (10, 4237862), (17, 2492860), (20, 2118931), (34, 1246430), (68, 623215), (85, 498572), (170, 249286), (340, 124643)]