20856850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{8513}}^1$

素因数の和:8539

約数の個数: 36

約数和(自身を含む): 45132714

約数和(自身を除く): 24275864

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 8513, 17026, 42565, 59591, 85130, 119182, 212825, 297955, 417137, 425650, 595910, 834274, 1489775, 2085685, 2979550, 4171370, 10428425, 20856850]

約数ペア:

[(1, 20856850), (2, 10428425), (5, 4171370), (7, 2979550), (10, 2085685), (14, 1489775), (25, 834274), (35, 595910), (49, 425650), (50, 417137), (70, 297955), (98, 212825), (175, 119182), (245, 85130), (350, 59591), (490, 42565), (1225, 17026), (2450, 8513)]