81852120

素因数分解:

$2^3\times 3^6\times 5^1\times 7^1\times {\mathrm{401}}^1$

素因数の和:437

約数の個数: 224

約数和(自身を含む): 316357920

約数和(自身を除く): 234505800

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, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 315, 324, 360, 378, 401, 405, 420, 486, 504, 540, 567, 630, 648, 729, 756, 802, 810, 840, 945, 972, 1080, 1134, 1203, 1215, 1260, 1458, 1512, 1604, 1620, 1701, 1890, 1944, 2005, 2268, 2406, 2430, 2520, 2807, 2835, 2916, 3208, 3240, 3402, 3609, 3645, 3780, 4010, 4536, 4812, 4860, 5103, 5614, 5670, 5832, 6015, 6804, 7218, 7290, 7560, 8020, 8421, 8505, 9624, 9720, 10206, 10827, 11228, 11340, 12030, 13608, 14035, 14436, 14580, 16040, 16842, 17010, 18045, 20412, 21654, 22456, 22680, 24060, 25263, 25515, 28070, 28872, 29160, 32481, 33684, 34020, 36090, 40824, 42105, 43308, 48120, 50526, 51030, 54135, 56140, 64962, 67368, 68040, 72180, 75789, 84210, 86616, 97443, 101052, 102060, 108270, 112280, 126315, 129924, 144360, 151578, 162405, 168420, 194886, 202104, 204120, 216540, 227367, 252630, 259848, 292329, 303156, 324810, 336840, 378945, 389772, 433080, 454734, 487215, 505260, 584658, 606312, 649620, 682101, 757890, 779544, 909468, 974430, 1010520, 1136835, 1169316, 1299240, 1364202, 1461645, 1515780, 1818936, 1948860, 2046303, 2273670, 2338632, 2728404, 2923290, 3031560, 3410505, 3897720, 4092606, 4547340, 5456808, 5846580, 6821010, 8185212, 9094680, 10231515, 11693160, 13642020, 16370424, 20463030, 27284040, 40926060, 81852120]

約数ペア:

[(1, 81852120), (2, 40926060), (3, 27284040), (4, 20463030), (5, 16370424), (6, 13642020), (7, 11693160), (8, 10231515), (9, 9094680), (10, 8185212), (12, 6821010), (14, 5846580), (15, 5456808), (18, 4547340), (20, 4092606), (21, 3897720), (24, 3410505), (27, 3031560), (28, 2923290), (30, 2728404), (35, 2338632), (36, 2273670), (40, 2046303), (42, 1948860), (45, 1818936), (54, 1515780), (56, 1461645), (60, 1364202), (63, 1299240), (70, 1169316), (72, 1136835), (81, 1010520), (84, 974430), (90, 909468), (105, 779544), (108, 757890), (120, 682101), (126, 649620), (135, 606312), (140, 584658), (162, 505260), (168, 487215), (180, 454734), (189, 433080), (210, 389772), (216, 378945), (243, 336840), (252, 324810), (270, 303156), (280, 292329), (315, 259848), (324, 252630), (360, 227367), (378, 216540), (401, 204120), (405, 202104), (420, 194886), (486, 168420), (504, 162405), (540, 151578), (567, 144360), (630, 129924), (648, 126315), (729, 112280), (756, 108270), (802, 102060), (810, 101052), (840, 97443), (945, 86616), (972, 84210), (1080, 75789), (1134, 72180), (1203, 68040), (1215, 67368), (1260, 64962), (1458, 56140), (1512, 54135), (1604, 51030), (1620, 50526), (1701, 48120), (1890, 43308), (1944, 42105), (2005, 40824), (2268, 36090), (2406, 34020), (2430, 33684), (2520, 32481), (2807, 29160), (2835, 28872), (2916, 28070), (3208, 25515), (3240, 25263), (3402, 24060), (3609, 22680), (3645, 22456), (3780, 21654), (4010, 20412), (4536, 18045), (4812, 17010), (4860, 16842), (5103, 16040), (5614, 14580), (5670, 14436), (5832, 14035), (6015, 13608), (6804, 12030), (7218, 11340), (7290, 11228), (7560, 10827), (8020, 10206), (8421, 9720), (8505, 9624)]