129123940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{229}}^1\times {\mathrm{233}}^1$

素因数の和:493

約数の個数: 72

約数和(自身を含む): 300638520

約数和(自身を除く): 171514580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 229, 233, 242, 458, 466, 484, 605, 916, 932, 1145, 1165, 1210, 2290, 2330, 2420, 2519, 2563, 4580, 4660, 5038, 5126, 10076, 10252, 12595, 12815, 25190, 25630, 27709, 28193, 50380, 51260, 53357, 55418, 56386, 106714, 110836, 112772, 138545, 140965, 213428, 266785, 277090, 281930, 533570, 554180, 563860, 586927, 1067140, 1173854, 2347708, 2934635, 5869270, 6456197, 11738540, 12912394, 25824788, 32280985, 64561970, 129123940]

約数ペア:

[(1, 129123940), (2, 64561970), (4, 32280985), (5, 25824788), (10, 12912394), (11, 11738540), (20, 6456197), (22, 5869270), (44, 2934635), (55, 2347708), (110, 1173854), (121, 1067140), (220, 586927), (229, 563860), (233, 554180), (242, 533570), (458, 281930), (466, 277090), (484, 266785), (605, 213428), (916, 140965), (932, 138545), (1145, 112772), (1165, 110836), (1210, 106714), (2290, 56386), (2330, 55418), (2420, 53357), (2519, 51260), (2563, 50380), (4580, 28193), (4660, 27709), (5038, 25630), (5126, 25190), (10076, 12815), (10252, 12595)]