1278161208

素因数分解:

$2^3\times 3^4\times {\mathrm{1972471}}^1$

素因数の和:1972489

約数の個数: 40

約数和(自身を含む): 3580036680

約数和(自身を除く): 2301875472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 1972471, 3944942, 5917413, 7889884, 11834826, 15779768, 17752239, 23669652, 35504478, 47339304, 53256717, 71008956, 106513434, 142017912, 159770151, 213026868, 319540302, 426053736, 639080604, 1278161208]

約数ペア:

[(1, 1278161208), (2, 639080604), (3, 426053736), (4, 319540302), (6, 213026868), (8, 159770151), (9, 142017912), (12, 106513434), (18, 71008956), (24, 53256717), (27, 47339304), (36, 35504478), (54, 23669652), (72, 17752239), (81, 15779768), (108, 11834826), (162, 7889884), (216, 5917413), (324, 3944942), (648, 1972471)]