442640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1$

素因数の和:527

約数の個数: 40

約数和(自身を含む): 1124928

約数和(自身を除く): 682288

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 503, 880, 1006, 2012, 2515, 4024, 5030, 5533, 8048, 10060, 11066, 20120, 22132, 27665, 40240, 44264, 55330, 88528, 110660, 221320, 442640]

約数ペア:

[(1, 442640), (2, 221320), (4, 110660), (5, 88528), (8, 55330), (10, 44264), (11, 40240), (16, 27665), (20, 22132), (22, 20120), (40, 11066), (44, 10060), (55, 8048), (80, 5533), (88, 5030), (110, 4024), (176, 2515), (220, 2012), (440, 1006), (503, 880)]