520975

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 798560

約数和(自身を除く): 277585

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 229, 325, 455, 1145, 1603, 2275, 2977, 5725, 8015, 14885, 20839, 40075, 74425, 104195, 520975]

約数ペア:

[(1, 520975), (5, 104195), (7, 74425), (13, 40075), (25, 20839), (35, 14885), (65, 8015), (91, 5725), (175, 2977), (229, 2275), (325, 1603), (455, 1145)]