1981541520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3607}}^1$

素因数の和:3742

約数の個数: 240

約数和(自身を含む): 7677246720

約数和(自身を除く): 5695705200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 109, 112, 120, 126, 140, 144, 168, 180, 210, 218, 240, 252, 280, 315, 327, 336, 360, 420, 436, 504, 545, 560, 630, 654, 720, 763, 840, 872, 981, 1008, 1090, 1260, 1308, 1526, 1635, 1680, 1744, 1962, 2180, 2289, 2520, 2616, 3052, 3270, 3607, 3815, 3924, 4360, 4578, 4905, 5040, 5232, 6104, 6540, 6867, 7214, 7630, 7848, 8720, 9156, 9810, 10821, 11445, 12208, 13080, 13734, 14428, 15260, 15696, 18035, 18312, 19620, 21642, 22890, 25249, 26160, 27468, 28856, 30520, 32463, 34335, 36070, 36624, 39240, 43284, 45780, 50498, 54105, 54936, 57712, 61040, 64926, 68670, 72140, 75747, 78480, 86568, 91560, 100996, 108210, 109872, 126245, 129852, 137340, 144280, 151494, 162315, 173136, 183120, 201992, 216420, 227241, 252490, 259704, 274680, 288560, 302988, 324630, 378735, 393163, 403984, 432840, 454482, 504980, 519408, 549360, 605976, 649260, 757470, 786326, 865680, 908964, 1009960, 1136205, 1179489, 1211952, 1298520, 1514940, 1572652, 1817928, 1965815, 2019920, 2272410, 2358978, 2597040, 2752141, 3029880, 3145304, 3538467, 3635856, 3931630, 4544820, 4717956, 5504282, 5897445, 6059760, 6290608, 7076934, 7863260, 8256423, 9089640, 9435912, 11008564, 11794890, 13760705, 14153868, 15726520, 16512846, 17692335, 18179280, 18871824, 22017128, 23589780, 24769269, 27521410, 28307736, 31453040, 33025692, 35384670, 41282115, 44034256, 47179560, 49538538, 55042820, 56615472, 66051384, 70769340, 82564230, 94359120, 99077076, 110085640, 123846345, 132102768, 141538680, 165128460, 198154152, 220171280, 247692690, 283077360, 330256920, 396308304, 495385380, 660513840, 990770760, 1981541520]

約数ペア:

[(1, 1981541520), (2, 990770760), (3, 660513840), (4, 495385380), (5, 396308304), (6, 330256920), (7, 283077360), (8, 247692690), (9, 220171280), (10, 198154152), (12, 165128460), (14, 141538680), (15, 132102768), (16, 123846345), (18, 110085640), (20, 99077076), (21, 94359120), (24, 82564230), (28, 70769340), (30, 66051384), (35, 56615472), (36, 55042820), (40, 49538538), (42, 47179560), (45, 44034256), (48, 41282115), (56, 35384670), (60, 33025692), (63, 31453040), (70, 28307736), (72, 27521410), (80, 24769269), (84, 23589780), (90, 22017128), (105, 18871824), (109, 18179280), (112, 17692335), (120, 16512846), (126, 15726520), (140, 14153868), (144, 13760705), (168, 11794890), (180, 11008564), (210, 9435912), (218, 9089640), (240, 8256423), (252, 7863260), (280, 7076934), (315, 6290608), (327, 6059760), (336, 5897445), (360, 5504282), (420, 4717956), (436, 4544820), (504, 3931630), (545, 3635856), (560, 3538467), (630, 3145304), (654, 3029880), (720, 2752141), (763, 2597040), (840, 2358978), (872, 2272410), (981, 2019920), (1008, 1965815), (1090, 1817928), (1260, 1572652), (1308, 1514940), (1526, 1298520), (1635, 1211952), (1680, 1179489), (1744, 1136205), (1962, 1009960), (2180, 908964), (2289, 865680), (2520, 786326), (2616, 757470), (3052, 649260), (3270, 605976), (3607, 549360), (3815, 519408), (3924, 504980), (4360, 454482), (4578, 432840), (4905, 403984), (5040, 393163), (5232, 378735), (6104, 324630), (6540, 302988), (6867, 288560), (7214, 274680), (7630, 259704), (7848, 252490), (8720, 227241), (9156, 216420), (9810, 201992), (10821, 183120), (11445, 173136), (12208, 162315), (13080, 151494), (13734, 144280), (14428, 137340), (15260, 129852), (15696, 126245), (18035, 109872), (18312, 108210), (19620, 100996), (21642, 91560), (22890, 86568), (25249, 78480), (26160, 75747), (27468, 72140), (28856, 68670), (30520, 64926), (32463, 61040), (34335, 57712), (36070, 54936), (36624, 54105), (39240, 50498), (43284, 45780)]