81015840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{443}}^1$

素因数の和:591

約数の個数: 144

約数和(自身を含む): 279272448

約数和(自身を除く): 198256608

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 127, 144, 160, 180, 240, 254, 288, 360, 381, 443, 480, 508, 635, 720, 762, 886, 1016, 1143, 1270, 1329, 1440, 1524, 1772, 1905, 2032, 2215, 2286, 2540, 2658, 3048, 3544, 3810, 3987, 4064, 4430, 4572, 5080, 5316, 5715, 6096, 6645, 7088, 7620, 7974, 8860, 9144, 10160, 10632, 11430, 12192, 13290, 14176, 15240, 15948, 17720, 18288, 19935, 20320, 21264, 22860, 26580, 30480, 31896, 35440, 36576, 39870, 42528, 45720, 53160, 56261, 60960, 63792, 70880, 79740, 91440, 106320, 112522, 127584, 159480, 168783, 182880, 212640, 225044, 281305, 318960, 337566, 450088, 506349, 562610, 637920, 675132, 843915, 900176, 1012698, 1125220, 1350264, 1687830, 1800352, 2025396, 2250440, 2531745, 2700528, 3375660, 4050792, 4500880, 5063490, 5401056, 6751320, 8101584, 9001760, 10126980, 13502640, 16203168, 20253960, 27005280, 40507920, 81015840]

約数ペア:

[(1, 81015840), (2, 40507920), (3, 27005280), (4, 20253960), (5, 16203168), (6, 13502640), (8, 10126980), (9, 9001760), (10, 8101584), (12, 6751320), (15, 5401056), (16, 5063490), (18, 4500880), (20, 4050792), (24, 3375660), (30, 2700528), (32, 2531745), (36, 2250440), (40, 2025396), (45, 1800352), (48, 1687830), (60, 1350264), (72, 1125220), (80, 1012698), (90, 900176), (96, 843915), (120, 675132), (127, 637920), (144, 562610), (160, 506349), (180, 450088), (240, 337566), (254, 318960), (288, 281305), (360, 225044), (381, 212640), (443, 182880), (480, 168783), (508, 159480), (635, 127584), (720, 112522), (762, 106320), (886, 91440), (1016, 79740), (1143, 70880), (1270, 63792), (1329, 60960), (1440, 56261), (1524, 53160), (1772, 45720), (1905, 42528), (2032, 39870), (2215, 36576), (2286, 35440), (2540, 31896), (2658, 30480), (3048, 26580), (3544, 22860), (3810, 21264), (3987, 20320), (4064, 19935), (4430, 18288), (4572, 17720), (5080, 15948), (5316, 15240), (5715, 14176), (6096, 13290), (6645, 12192), (7088, 11430), (7620, 10632), (7974, 10160), (8860, 9144)]