28107640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 69672960

約数和(自身を除く): 41565320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 127, 220, 254, 440, 503, 508, 635, 1006, 1016, 1270, 1397, 2012, 2515, 2540, 2794, 4024, 5030, 5080, 5533, 5588, 6985, 10060, 11066, 11176, 13970, 20120, 22132, 27665, 27940, 44264, 55330, 55880, 63881, 110660, 127762, 221320, 255524, 319405, 511048, 638810, 702691, 1277620, 1405382, 2555240, 2810764, 3513455, 5621528, 7026910, 14053820, 28107640]

約数ペア:

[(1, 28107640), (2, 14053820), (4, 7026910), (5, 5621528), (8, 3513455), (10, 2810764), (11, 2555240), (20, 1405382), (22, 1277620), (40, 702691), (44, 638810), (55, 511048), (88, 319405), (110, 255524), (127, 221320), (220, 127762), (254, 110660), (440, 63881), (503, 55880), (508, 55330), (635, 44264), (1006, 27940), (1016, 27665), (1270, 22132), (1397, 20120), (2012, 13970), (2515, 11176), (2540, 11066), (2794, 10060), (4024, 6985), (5030, 5588), (5080, 5533)]