79285785

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 129140352

約数和(自身を除く): 49854567

約数列:

[1, 3, 5, 15, 131, 157, 257, 393, 471, 655, 771, 785, 1285, 1965, 2355, 3855, 20567, 33667, 40349, 61701, 101001, 102835, 121047, 168335, 201745, 308505, 505005, 605235, 5285719, 15857157, 26428595, 79285785]

約数ペア:

[(1, 79285785), (3, 26428595), (5, 15857157), (15, 5285719), (131, 605235), (157, 505005), (257, 308505), (393, 201745), (471, 168335), (655, 121047), (771, 102835), (785, 101001), (1285, 61701), (1965, 40349), (2355, 33667), (3855, 20567)]