203209100

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{28621}}^1$

素因数の和:28706

約数の個数: 36

約数和(自身を含む): 447190128

約数和(自身を除く): 243981028

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 7100, 28621, 57242, 114484, 143105, 286210, 572420, 715525, 1431050, 2032091, 2862100, 4064182, 8128364, 10160455, 20320910, 40641820, 50802275, 101604550, 203209100]

約数ペア:

[(1, 203209100), (2, 101604550), (4, 50802275), (5, 40641820), (10, 20320910), (20, 10160455), (25, 8128364), (50, 4064182), (71, 2862100), (100, 2032091), (142, 1431050), (284, 715525), (355, 572420), (710, 286210), (1420, 143105), (1775, 114484), (3550, 57242), (7100, 28621)]