257937120

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{25589}}^1$

素因数の和:25617

約数の個数: 144

約数和(自身を含む): 1005994080

約数和(自身を除く): 748056960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 25589, 51178, 76767, 102356, 127945, 153534, 179123, 204712, 230301, 255890, 307068, 358246, 383835, 409424, 460602, 511780, 537369, 614136, 716492, 767670, 818848, 895615, 921204, 1023560, 1074738, 1151505, 1228272, 1432984, 1535340, 1612107, 1791230, 1842408, 2047120, 2149476, 2303010, 2456544, 2686845, 2865968, 3070680, 3224214, 3582460, 3684816, 4094240, 4298952, 4606020, 5373690, 5731936, 6141360, 6448428, 7164920, 7369632, 8060535, 8597904, 9212040, 10747380, 12282720, 12896856, 14329840, 16121070, 17195808, 18424080, 21494760, 25793712, 28659680, 32242140, 36848160, 42989520, 51587424, 64484280, 85979040, 128968560, 257937120]

約数ペア:

[(1, 257937120), (2, 128968560), (3, 85979040), (4, 64484280), (5, 51587424), (6, 42989520), (7, 36848160), (8, 32242140), (9, 28659680), (10, 25793712), (12, 21494760), (14, 18424080), (15, 17195808), (16, 16121070), (18, 14329840), (20, 12896856), (21, 12282720), (24, 10747380), (28, 9212040), (30, 8597904), (32, 8060535), (35, 7369632), (36, 7164920), (40, 6448428), (42, 6141360), (45, 5731936), (48, 5373690), (56, 4606020), (60, 4298952), (63, 4094240), (70, 3684816), (72, 3582460), (80, 3224214), (84, 3070680), (90, 2865968), (96, 2686845), (105, 2456544), (112, 2303010), (120, 2149476), (126, 2047120), (140, 1842408), (144, 1791230), (160, 1612107), (168, 1535340), (180, 1432984), (210, 1228272), (224, 1151505), (240, 1074738), (252, 1023560), (280, 921204), (288, 895615), (315, 818848), (336, 767670), (360, 716492), (420, 614136), (480, 537369), (504, 511780), (560, 460602), (630, 409424), (672, 383835), (720, 358246), (840, 307068), (1008, 255890), (1120, 230301), (1260, 204712), (1440, 179123), (1680, 153534), (2016, 127945), (2520, 102356), (3360, 76767), (5040, 51178), (10080, 25589)]