201021580

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{189643}}^1$

素因数の和:189705

約数の個数: 24

約数和(自身を含む): 430112592

約数和(自身を除く): 229091012

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 189643, 379286, 758572, 948215, 1896430, 3792860, 10051079, 20102158, 40204316, 50255395, 100510790, 201021580]

約数ペア:

[(1, 201021580), (2, 100510790), (4, 50255395), (5, 40204316), (10, 20102158), (20, 10051079), (53, 3792860), (106, 1896430), (212, 948215), (265, 758572), (530, 379286), (1060, 189643)]