201979160

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{7853}}^1$

素因数の和:8507

約数の個数: 32

約数和(自身を含む): 455217840

約数和(自身を除く): 253238680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 7853, 12860, 15706, 25720, 31412, 39265, 62824, 78530, 157060, 314120, 5049479, 10098958, 20197916, 25247395, 40395832, 50494790, 100989580, 201979160]

約数ペア:

[(1, 201979160), (2, 100989580), (4, 50494790), (5, 40395832), (8, 25247395), (10, 20197916), (20, 10098958), (40, 5049479), (643, 314120), (1286, 157060), (2572, 78530), (3215, 62824), (5144, 39265), (6430, 31412), (7853, 25720), (12860, 15706)]