320551560

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:525

約数の個数: 256

約数和(自身を含む): 1235520000

約数和(自身を除く): 914968440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 109, 120, 126, 135, 140, 168, 180, 189, 210, 216, 218, 252, 270, 280, 315, 327, 360, 378, 389, 420, 436, 504, 540, 545, 630, 654, 756, 763, 778, 840, 872, 945, 981, 1080, 1090, 1167, 1260, 1308, 1512, 1526, 1556, 1635, 1890, 1945, 1962, 2180, 2289, 2334, 2520, 2616, 2723, 2943, 3052, 3112, 3270, 3501, 3780, 3815, 3890, 3924, 4360, 4578, 4668, 4905, 5446, 5835, 5886, 6104, 6540, 6867, 7002, 7560, 7630, 7780, 7848, 8169, 9156, 9336, 9810, 10503, 10892, 11445, 11670, 11772, 13080, 13615, 13734, 14004, 14715, 15260, 15560, 16338, 17505, 18312, 19620, 20601, 21006, 21784, 22890, 23340, 23544, 24507, 27230, 27468, 28008, 29430, 30520, 32676, 34335, 35010, 39240, 40845, 41202, 42012, 42401, 45780, 46680, 49014, 52515, 54460, 54936, 58860, 65352, 68670, 70020, 73521, 81690, 82404, 84024, 84802, 91560, 98028, 103005, 105030, 108920, 117720, 122535, 127203, 137340, 140040, 147042, 163380, 164808, 169604, 196056, 206010, 210060, 212005, 245070, 254406, 274680, 294084, 296807, 326760, 339208, 367605, 381609, 412020, 420120, 424010, 490140, 508812, 588168, 593614, 636015, 735210, 763218, 824040, 848020, 890421, 980280, 1017624, 1144827, 1187228, 1272030, 1470420, 1484035, 1526436, 1696040, 1780842, 1908045, 2289654, 2374456, 2544060, 2671263, 2940840, 2968070, 3052872, 3561684, 3816090, 4452105, 4579308, 5088120, 5342526, 5724135, 5936140, 7123368, 7632180, 8013789, 8904210, 9158616, 10685052, 11448270, 11872280, 13356315, 15264360, 16027578, 17808420, 21370104, 22896540, 26712630, 32055156, 35616840, 40068945, 45793080, 53425260, 64110312, 80137890, 106850520, 160275780, 320551560]

約数ペア:

[(1, 320551560), (2, 160275780), (3, 106850520), (4, 80137890), (5, 64110312), (6, 53425260), (7, 45793080), (8, 40068945), (9, 35616840), (10, 32055156), (12, 26712630), (14, 22896540), (15, 21370104), (18, 17808420), (20, 16027578), (21, 15264360), (24, 13356315), (27, 11872280), (28, 11448270), (30, 10685052), (35, 9158616), (36, 8904210), (40, 8013789), (42, 7632180), (45, 7123368), (54, 5936140), (56, 5724135), (60, 5342526), (63, 5088120), (70, 4579308), (72, 4452105), (84, 3816090), (90, 3561684), (105, 3052872), (108, 2968070), (109, 2940840), (120, 2671263), (126, 2544060), (135, 2374456), (140, 2289654), (168, 1908045), (180, 1780842), (189, 1696040), (210, 1526436), (216, 1484035), (218, 1470420), (252, 1272030), (270, 1187228), (280, 1144827), (315, 1017624), (327, 980280), (360, 890421), (378, 848020), (389, 824040), (420, 763218), (436, 735210), (504, 636015), (540, 593614), (545, 588168), (630, 508812), (654, 490140), (756, 424010), (763, 420120), (778, 412020), (840, 381609), (872, 367605), (945, 339208), (981, 326760), (1080, 296807), (1090, 294084), (1167, 274680), (1260, 254406), (1308, 245070), (1512, 212005), (1526, 210060), (1556, 206010), (1635, 196056), (1890, 169604), (1945, 164808), (1962, 163380), (2180, 147042), (2289, 140040), (2334, 137340), (2520, 127203), (2616, 122535), (2723, 117720), (2943, 108920), (3052, 105030), (3112, 103005), (3270, 98028), (3501, 91560), (3780, 84802), (3815, 84024), (3890, 82404), (3924, 81690), (4360, 73521), (4578, 70020), (4668, 68670), (4905, 65352), (5446, 58860), (5835, 54936), (5886, 54460), (6104, 52515), (6540, 49014), (6867, 46680), (7002, 45780), (7560, 42401), (7630, 42012), (7780, 41202), (7848, 40845), (8169, 39240), (9156, 35010), (9336, 34335), (9810, 32676), (10503, 30520), (10892, 29430), (11445, 28008), (11670, 27468), (11772, 27230), (13080, 24507), (13615, 23544), (13734, 23340), (14004, 22890), (14715, 21784), (15260, 21006), (15560, 20601), (16338, 19620), (17505, 18312)]