201499240

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{7621}}^1$

素因数の和:8293

約数の個数: 32

約数和(自身を含む): 454118760

約数和(自身を除く): 252619520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 7621, 13220, 15242, 26440, 30484, 38105, 60968, 76210, 152420, 304840, 5037481, 10074962, 20149924, 25187405, 40299848, 50374810, 100749620, 201499240]

約数ペア:

[(1, 201499240), (2, 100749620), (4, 50374810), (5, 40299848), (8, 25187405), (10, 20149924), (20, 10074962), (40, 5037481), (661, 304840), (1322, 152420), (2644, 76210), (3305, 60968), (5288, 38105), (6610, 30484), (7621, 26440), (13220, 15242)]