80487720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{223577}}^1$

素因数の和:223594

約数の個数: 48

約数和(自身を含む): 261586260

約数和(自身を除く): 181098540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 223577, 447154, 670731, 894308, 1117885, 1341462, 1788616, 2012193, 2235770, 2682924, 3353655, 4024386, 4471540, 5365848, 6707310, 8048772, 8943080, 10060965, 13414620, 16097544, 20121930, 26829240, 40243860, 80487720]

約数ペア:

[(1, 80487720), (2, 40243860), (3, 26829240), (4, 20121930), (5, 16097544), (6, 13414620), (8, 10060965), (9, 8943080), (10, 8048772), (12, 6707310), (15, 5365848), (18, 4471540), (20, 4024386), (24, 3353655), (30, 2682924), (36, 2235770), (40, 2012193), (45, 1788616), (60, 1341462), (72, 1117885), (90, 894308), (120, 670731), (180, 447154), (360, 223577)]