128997020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{823}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 287800128

約数和(自身を除く): 158803108

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 461, 823, 922, 1646, 1844, 2305, 3292, 4115, 4610, 7837, 8230, 9220, 13991, 15674, 16460, 27982, 31348, 39185, 55964, 69955, 78370, 139910, 156740, 279820, 379403, 758806, 1517612, 1897015, 3794030, 6449851, 7588060, 12899702, 25799404, 32249255, 64498510, 128997020]

約数ペア:

[(1, 128997020), (2, 64498510), (4, 32249255), (5, 25799404), (10, 12899702), (17, 7588060), (20, 6449851), (34, 3794030), (68, 1897015), (85, 1517612), (170, 758806), (340, 379403), (461, 279820), (823, 156740), (922, 139910), (1646, 78370), (1844, 69955), (2305, 55964), (3292, 39185), (4115, 31348), (4610, 27982), (7837, 16460), (8230, 15674), (9220, 13991)]