256280656

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{2311}}^1$

素因数の和:2587

約数の個数: 40

約数和(自身を含む): 516038400

約数和(自身を除く): 259757744

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 239, 464, 478, 956, 1912, 2311, 3824, 4622, 6931, 9244, 13862, 18488, 27724, 36976, 55448, 67019, 110896, 134038, 268076, 536152, 552329, 1072304, 1104658, 2209316, 4418632, 8837264, 16017541, 32035082, 64070164, 128140328, 256280656]

約数ペア:

[(1, 256280656), (2, 128140328), (4, 64070164), (8, 32035082), (16, 16017541), (29, 8837264), (58, 4418632), (116, 2209316), (232, 1104658), (239, 1072304), (464, 552329), (478, 536152), (956, 268076), (1912, 134038), (2311, 110896), (3824, 67019), (4622, 55448), (6931, 36976), (9244, 27724), (13862, 18488)]