20419128

素因数分解:

$2^3\times 3^4\times {\mathrm{31511}}^1$

素因数の和:31529

約数の個数: 40

約数和(自身を含む): 57194280

約数和(自身を除く): 36775152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 31511, 63022, 94533, 126044, 189066, 252088, 283599, 378132, 567198, 756264, 850797, 1134396, 1701594, 2268792, 2552391, 3403188, 5104782, 6806376, 10209564, 20419128]

約数ペア:

[(1, 20419128), (2, 10209564), (3, 6806376), (4, 5104782), (6, 3403188), (8, 2552391), (9, 2268792), (12, 1701594), (18, 1134396), (24, 850797), (27, 756264), (36, 567198), (54, 378132), (72, 283599), (81, 252088), (108, 189066), (162, 126044), (216, 94533), (324, 63022), (648, 31511)]