426456815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{523}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 556186176

約数和(自身を除く): 129729361

約数列:

[1, 5, 17, 53, 85, 181, 265, 523, 901, 905, 2615, 3077, 4505, 8891, 9593, 15385, 27719, 44455, 47965, 94663, 138595, 163081, 471223, 473315, 815405, 1609271, 2356115, 5017139, 8046355, 25085695, 85291363, 426456815]

約数ペア:

[(1, 426456815), (5, 85291363), (17, 25085695), (53, 8046355), (85, 5017139), (181, 2356115), (265, 1609271), (523, 815405), (901, 473315), (905, 471223), (2615, 163081), (3077, 138595), (4505, 94663), (8891, 47965), (9593, 44455), (15385, 27719)]