80298280

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3037}}^1$

素因数の和:3709

約数の個数: 32

約数和(自身を含む): 181004040

約数和(自身を除く): 100705760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3037, 3305, 5288, 6074, 6610, 12148, 13220, 15185, 24296, 26440, 30370, 60740, 121480, 2007457, 4014914, 8029828, 10037285, 16059656, 20074570, 40149140, 80298280]

約数ペア:

[(1, 80298280), (2, 40149140), (4, 20074570), (5, 16059656), (8, 10037285), (10, 8029828), (20, 4014914), (40, 2007457), (661, 121480), (1322, 60740), (2644, 30370), (3037, 26440), (3305, 24296), (5288, 15185), (6074, 13220), (6610, 12148)]