27996980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{503}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 67568256

約数和(自身を除く): 39571276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 460, 484, 503, 506, 605, 1006, 1012, 1210, 1265, 2012, 2420, 2515, 2530, 2783, 5030, 5060, 5533, 5566, 10060, 11066, 11132, 11569, 13915, 22132, 23138, 27665, 27830, 46276, 55330, 55660, 57845, 60863, 110660, 115690, 121726, 127259, 231380, 243452, 254518, 304315, 509036, 608630, 636295, 1217260, 1272590, 1399849, 2545180, 2799698, 5599396, 6999245, 13998490, 27996980]

約数ペア:

[(1, 27996980), (2, 13998490), (4, 6999245), (5, 5599396), (10, 2799698), (11, 2545180), (20, 1399849), (22, 1272590), (23, 1217260), (44, 636295), (46, 608630), (55, 509036), (92, 304315), (110, 254518), (115, 243452), (121, 231380), (220, 127259), (230, 121726), (242, 115690), (253, 110660), (460, 60863), (484, 57845), (503, 55660), (506, 55330), (605, 46276), (1006, 27830), (1012, 27665), (1210, 23138), (1265, 22132), (2012, 13915), (2420, 11569), (2515, 11132), (2530, 11066), (2783, 10060), (5030, 5566), (5060, 5533)]