216406940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{523}}^1\times {\mathrm{1217}}^1$

素因数の和:1766

約数の個数: 48

約数和(自身を含む): 482503392

約数和(自身を除く): 266096452

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 523, 1046, 1217, 2092, 2434, 2615, 4868, 5230, 6085, 8891, 10460, 12170, 17782, 20689, 24340, 35564, 41378, 44455, 82756, 88910, 103445, 177820, 206890, 413780, 636491, 1272982, 2545964, 3182455, 6364910, 10820347, 12729820, 21640694, 43281388, 54101735, 108203470, 216406940]

約数ペア:

[(1, 216406940), (2, 108203470), (4, 54101735), (5, 43281388), (10, 21640694), (17, 12729820), (20, 10820347), (34, 6364910), (68, 3182455), (85, 2545964), (170, 1272982), (340, 636491), (523, 413780), (1046, 206890), (1217, 177820), (2092, 103445), (2434, 88910), (2615, 82756), (4868, 44455), (5230, 41378), (6085, 35564), (8891, 24340), (10460, 20689), (12170, 17782)]