81361560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:266

約数の個数: 192

約数和(自身を含む): 288839520

約数和(自身を除く): 207477960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 101, 105, 120, 137, 140, 147, 168, 196, 202, 210, 245, 274, 280, 294, 303, 392, 404, 411, 420, 490, 505, 548, 588, 606, 685, 707, 735, 808, 822, 840, 959, 980, 1010, 1096, 1176, 1212, 1370, 1414, 1470, 1515, 1644, 1918, 1960, 2020, 2055, 2121, 2424, 2740, 2828, 2877, 2940, 3030, 3288, 3535, 3836, 4040, 4110, 4242, 4795, 4949, 5480, 5656, 5754, 5880, 6060, 6713, 7070, 7672, 8220, 8484, 9590, 9898, 10605, 11508, 12120, 13426, 13837, 14140, 14385, 14847, 16440, 16968, 19180, 19796, 20139, 21210, 23016, 24745, 26852, 27674, 28280, 28770, 29694, 33565, 38360, 39592, 40278, 41511, 42420, 49490, 53704, 55348, 57540, 59388, 67130, 69185, 74235, 80556, 83022, 84840, 96859, 98980, 100695, 110696, 115080, 118776, 134260, 138370, 148470, 161112, 166044, 193718, 197960, 201390, 207555, 268520, 276740, 290577, 296940, 332088, 387436, 402780, 415110, 484295, 553480, 581154, 593880, 678013, 774872, 805560, 830220, 968590, 1162308, 1356026, 1452885, 1660440, 1937180, 2034039, 2324616, 2712052, 2905770, 3390065, 3874360, 4068078, 5424104, 5811540, 6780130, 8136156, 10170195, 11623080, 13560260, 16272312, 20340390, 27120520, 40680780, 81361560]

約数ペア:

[(1, 81361560), (2, 40680780), (3, 27120520), (4, 20340390), (5, 16272312), (6, 13560260), (7, 11623080), (8, 10170195), (10, 8136156), (12, 6780130), (14, 5811540), (15, 5424104), (20, 4068078), (21, 3874360), (24, 3390065), (28, 2905770), (30, 2712052), (35, 2324616), (40, 2034039), (42, 1937180), (49, 1660440), (56, 1452885), (60, 1356026), (70, 1162308), (84, 968590), (98, 830220), (101, 805560), (105, 774872), (120, 678013), (137, 593880), (140, 581154), (147, 553480), (168, 484295), (196, 415110), (202, 402780), (210, 387436), (245, 332088), (274, 296940), (280, 290577), (294, 276740), (303, 268520), (392, 207555), (404, 201390), (411, 197960), (420, 193718), (490, 166044), (505, 161112), (548, 148470), (588, 138370), (606, 134260), (685, 118776), (707, 115080), (735, 110696), (808, 100695), (822, 98980), (840, 96859), (959, 84840), (980, 83022), (1010, 80556), (1096, 74235), (1176, 69185), (1212, 67130), (1370, 59388), (1414, 57540), (1470, 55348), (1515, 53704), (1644, 49490), (1918, 42420), (1960, 41511), (2020, 40278), (2055, 39592), (2121, 38360), (2424, 33565), (2740, 29694), (2828, 28770), (2877, 28280), (2940, 27674), (3030, 26852), (3288, 24745), (3535, 23016), (3836, 21210), (4040, 20139), (4110, 19796), (4242, 19180), (4795, 16968), (4949, 16440), (5480, 14847), (5656, 14385), (5754, 14140), (5880, 13837), (6060, 13426), (6713, 12120), (7070, 11508), (7672, 10605), (8220, 9898), (8484, 9590)]