261789216

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{209767}}^1$

素因数の和:209793

約数の個数: 48

約数和(自身を含む): 740061504

約数和(自身を除く): 478272288

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 209767, 419534, 629301, 839068, 1258602, 1678136, 2517204, 2726971, 3356272, 5034408, 5453942, 6712544, 8180913, 10068816, 10907884, 16361826, 20137632, 21815768, 32723652, 43631536, 65447304, 87263072, 130894608, 261789216]

約数ペア:

[(1, 261789216), (2, 130894608), (3, 87263072), (4, 65447304), (6, 43631536), (8, 32723652), (12, 21815768), (13, 20137632), (16, 16361826), (24, 10907884), (26, 10068816), (32, 8180913), (39, 6712544), (48, 5453942), (52, 5034408), (78, 3356272), (96, 2726971), (104, 2517204), (156, 1678136), (208, 1258602), (312, 839068), (416, 629301), (624, 419534), (1248, 209767)]