20577810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 54411264

約数和(自身を除く): 33833454

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 127, 165, 254, 330, 381, 491, 635, 762, 982, 1270, 1397, 1473, 1905, 2455, 2794, 2946, 3810, 4191, 4910, 5401, 6985, 7365, 8382, 10802, 13970, 14730, 16203, 20955, 27005, 32406, 41910, 54010, 62357, 81015, 124714, 162030, 187071, 311785, 374142, 623570, 685927, 935355, 1371854, 1870710, 2057781, 3429635, 4115562, 6859270, 10288905, 20577810]

約数ペア:

[(1, 20577810), (2, 10288905), (3, 6859270), (5, 4115562), (6, 3429635), (10, 2057781), (11, 1870710), (15, 1371854), (22, 935355), (30, 685927), (33, 623570), (55, 374142), (66, 311785), (110, 187071), (127, 162030), (165, 124714), (254, 81015), (330, 62357), (381, 54010), (491, 41910), (635, 32406), (762, 27005), (982, 20955), (1270, 16203), (1397, 14730), (1473, 13970), (1905, 10802), (2455, 8382), (2794, 7365), (2946, 6985), (3810, 5401), (4191, 4910)]