221766064

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:426

約数の個数: 80

約数和(自身を含む): 482857984

約数和(自身を除く): 261091920

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 163, 208, 211, 248, 326, 403, 422, 496, 652, 806, 844, 1304, 1612, 1688, 2119, 2608, 2743, 3224, 3376, 4238, 5053, 5486, 6448, 6541, 8476, 10106, 10972, 13082, 16952, 20212, 21944, 26164, 33904, 34393, 40424, 43888, 52328, 65689, 68786, 80848, 85033, 104656, 131378, 137572, 170066, 262756, 275144, 340132, 447109, 525512, 550288, 680264, 894218, 1051024, 1066183, 1360528, 1788436, 2132366, 3576872, 4264732, 7153744, 8529464, 13860379, 17058928, 27720758, 55441516, 110883032, 221766064]

約数ペア:

[(1, 221766064), (2, 110883032), (4, 55441516), (8, 27720758), (13, 17058928), (16, 13860379), (26, 8529464), (31, 7153744), (52, 4264732), (62, 3576872), (104, 2132366), (124, 1788436), (163, 1360528), (208, 1066183), (211, 1051024), (248, 894218), (326, 680264), (403, 550288), (422, 525512), (496, 447109), (652, 340132), (806, 275144), (844, 262756), (1304, 170066), (1612, 137572), (1688, 131378), (2119, 104656), (2608, 85033), (2743, 80848), (3224, 68786), (3376, 65689), (4238, 52328), (5053, 43888), (5486, 40424), (6448, 34393), (6541, 33904), (8476, 26164), (10106, 21944), (10972, 20212), (13082, 16952)]