161318720

素因数分解:

$2^6\times 5^1\times {\mathrm{504121}}^1$

素因数の和:504138

約数の個数: 28

約数和(自身を含む): 384140964

約数和(自身を除く): 222822244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 504121, 1008242, 2016484, 2520605, 4032968, 5041210, 8065936, 10082420, 16131872, 20164840, 32263744, 40329680, 80659360, 161318720]

約数ペア:

[(1, 161318720), (2, 80659360), (4, 40329680), (5, 32263744), (8, 20164840), (10, 16131872), (16, 10082420), (20, 8065936), (32, 5041210), (40, 4032968), (64, 2520605), (80, 2016484), (160, 1008242), (320, 504121)]