771231720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{3491}}^1$

素因数の和:3775

約数の個数: 128

約数和(自身を含む): 2655037440

約数和(自身を除く): 1883805720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 263, 280, 420, 526, 789, 840, 1052, 1315, 1578, 1841, 2104, 2630, 3156, 3491, 3682, 3945, 5260, 5523, 6312, 6982, 7364, 7890, 9205, 10473, 10520, 11046, 13964, 14728, 15780, 17455, 18410, 20946, 22092, 24437, 27615, 27928, 31560, 34910, 36820, 41892, 44184, 48874, 52365, 55230, 69820, 73311, 73640, 83784, 97748, 104730, 110460, 122185, 139640, 146622, 195496, 209460, 220920, 244370, 293244, 366555, 418920, 488740, 586488, 733110, 918133, 977480, 1466220, 1836266, 2754399, 2932440, 3672532, 4590665, 5508798, 6426931, 7345064, 9181330, 11017596, 12853862, 13771995, 18362660, 19280793, 22035192, 25707724, 27543990, 32134655, 36725320, 38561586, 51415448, 55087980, 64269310, 77123172, 96403965, 110175960, 128538620, 154246344, 192807930, 257077240, 385615860, 771231720]

約数ペア:

[(1, 771231720), (2, 385615860), (3, 257077240), (4, 192807930), (5, 154246344), (6, 128538620), (7, 110175960), (8, 96403965), (10, 77123172), (12, 64269310), (14, 55087980), (15, 51415448), (20, 38561586), (21, 36725320), (24, 32134655), (28, 27543990), (30, 25707724), (35, 22035192), (40, 19280793), (42, 18362660), (56, 13771995), (60, 12853862), (70, 11017596), (84, 9181330), (105, 7345064), (120, 6426931), (140, 5508798), (168, 4590665), (210, 3672532), (263, 2932440), (280, 2754399), (420, 1836266), (526, 1466220), (789, 977480), (840, 918133), (1052, 733110), (1315, 586488), (1578, 488740), (1841, 418920), (2104, 366555), (2630, 293244), (3156, 244370), (3491, 220920), (3682, 209460), (3945, 195496), (5260, 146622), (5523, 139640), (6312, 122185), (6982, 110460), (7364, 104730), (7890, 97748), (9205, 83784), (10473, 73640), (10520, 73311), (11046, 69820), (13964, 55230), (14728, 52365), (15780, 48874), (17455, 44184), (18410, 41892), (20946, 36820), (22092, 34910), (24437, 31560), (27615, 27928)]