201954020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{127819}}^1$

素因数の和:127907

約数の個数: 24

約数和(自身を含む): 429475200

約数和(自身を除く): 227521180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 127819, 255638, 511276, 639095, 1278190, 2556380, 10097701, 20195402, 40390804, 50488505, 100977010, 201954020]

約数ペア:

[(1, 201954020), (2, 100977010), (4, 50488505), (5, 40390804), (10, 20195402), (20, 10097701), (79, 2556380), (158, 1278190), (316, 639095), (395, 511276), (790, 255638), (1580, 127819)]