256124340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{33091}}^1$

素因数の和:33149

約数の個数: 72

約数和(自身を含む): 795002208

約数和(自身を除く): 538877868

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 33091, 66182, 99273, 132364, 165455, 198546, 297819, 330910, 397092, 496365, 595638, 661820, 992730, 1191276, 1422913, 1489095, 1985460, 2845826, 2978190, 4268739, 5691652, 5956380, 7114565, 8537478, 12806217, 14229130, 17074956, 21343695, 25612434, 28458260, 42687390, 51224868, 64031085, 85374780, 128062170, 256124340]

約数ペア:

[(1, 256124340), (2, 128062170), (3, 85374780), (4, 64031085), (5, 51224868), (6, 42687390), (9, 28458260), (10, 25612434), (12, 21343695), (15, 17074956), (18, 14229130), (20, 12806217), (30, 8537478), (36, 7114565), (43, 5956380), (45, 5691652), (60, 4268739), (86, 2978190), (90, 2845826), (129, 1985460), (172, 1489095), (180, 1422913), (215, 1191276), (258, 992730), (387, 661820), (430, 595638), (516, 496365), (645, 397092), (774, 330910), (860, 297819), (1290, 198546), (1548, 165455), (1935, 132364), (2580, 99273), (3870, 66182), (7740, 33091)]