20121388272

素因数分解:

$2^4\times 3^2\times {\mathrm{457}}^1\times {\mathrm{305759}}^1$

素因数の和:306230

約数の個数: 60

約数和(自身を含む): 56435346240

約数和(自身を除く): 36313957968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 457, 914, 1371, 1828, 2742, 3656, 4113, 5484, 7312, 8226, 10968, 16452, 21936, 32904, 65808, 305759, 611518, 917277, 1223036, 1834554, 2446072, 2751831, 3669108, 4892144, 5503662, 7338216, 11007324, 14676432, 22014648, 44029296, 139731863, 279463726, 419195589, 558927452, 838391178, 1117854904, 1257586767, 1676782356, 2235709808, 2515173534, 3353564712, 5030347068, 6707129424, 10060694136, 20121388272]

約数ペア:

[(1, 20121388272), (2, 10060694136), (3, 6707129424), (4, 5030347068), (6, 3353564712), (8, 2515173534), (9, 2235709808), (12, 1676782356), (16, 1257586767), (18, 1117854904), (24, 838391178), (36, 558927452), (48, 419195589), (72, 279463726), (144, 139731863), (457, 44029296), (914, 22014648), (1371, 14676432), (1828, 11007324), (2742, 7338216), (3656, 5503662), (4113, 4892144), (5484, 3669108), (7312, 2751831), (8226, 2446072), (10968, 1834554), (16452, 1223036), (21936, 917277), (32904, 611518), (65808, 305759)]