65198860

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{6481}}^1$

素因数の和:6993

約数の個数: 24

約数和(自身を含む): 137210976

約数和(自身を除く): 72012116

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2515, 5030, 6481, 10060, 12962, 25924, 32405, 64810, 129620, 3259943, 6519886, 13039772, 16299715, 32599430, 65198860]

約数ペア:

[(1, 65198860), (2, 32599430), (4, 16299715), (5, 13039772), (10, 6519886), (20, 3259943), (503, 129620), (1006, 64810), (2012, 32405), (2515, 25924), (5030, 12962), (6481, 10060)]