256756656

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{411469}}^1$

素因数の和:411493

約数の個数: 40

約数和(自身を含む): 714311920

約数和(自身を除く): 457555264

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 411469, 822938, 1234407, 1645876, 2468814, 3291752, 4937628, 5349097, 6583504, 9875256, 10698194, 16047291, 19750512, 21396388, 32094582, 42792776, 64189164, 85585552, 128378328, 256756656]

約数ペア:

[(1, 256756656), (2, 128378328), (3, 85585552), (4, 64189164), (6, 42792776), (8, 32094582), (12, 21396388), (13, 19750512), (16, 16047291), (24, 10698194), (26, 9875256), (39, 6583504), (48, 5349097), (52, 4937628), (78, 3291752), (104, 2468814), (156, 1645876), (208, 1234407), (312, 822938), (624, 411469)]