261019512

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{278867}}^1$

素因数の和:278892

約数の個数: 48

約数和(自身を含む): 761309640

約数和(自身を除く): 500290128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 278867, 557734, 836601, 1115468, 1673202, 2230936, 2509803, 3346404, 3625271, 5019606, 6692808, 7250542, 10039212, 10875813, 14501084, 20078424, 21751626, 29002168, 32627439, 43503252, 65254878, 87006504, 130509756, 261019512]

約数ペア:

[(1, 261019512), (2, 130509756), (3, 87006504), (4, 65254878), (6, 43503252), (8, 32627439), (9, 29002168), (12, 21751626), (13, 20078424), (18, 14501084), (24, 10875813), (26, 10039212), (36, 7250542), (39, 6692808), (52, 5019606), (72, 3625271), (78, 3346404), (104, 2509803), (117, 2230936), (156, 1673202), (234, 1115468), (312, 836601), (468, 557734), (936, 278867)]