2021401620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{37309}}^1$

素因数の和:37374

約数の個数: 144

約数和(自身を含む): 7170683520

約数和(自身を除く): 5149281900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 60, 63, 70, 84, 86, 90, 105, 126, 129, 140, 172, 180, 210, 215, 252, 258, 301, 315, 387, 420, 430, 516, 602, 630, 645, 774, 860, 903, 1204, 1260, 1290, 1505, 1548, 1806, 1935, 2580, 2709, 3010, 3612, 3870, 4515, 5418, 6020, 7740, 9030, 10836, 13545, 18060, 27090, 37309, 54180, 74618, 111927, 149236, 186545, 223854, 261163, 335781, 373090, 447708, 522326, 559635, 671562, 746180, 783489, 1044652, 1119270, 1305815, 1343124, 1566978, 1604287, 1678905, 2238540, 2350467, 2611630, 3133956, 3208574, 3357810, 3917445, 4700934, 4812861, 5223260, 6417148, 6715620, 7834890, 8021435, 9401868, 9625722, 11230009, 11752335, 14438583, 15669780, 16042870, 19251444, 22460018, 23504670, 24064305, 28877166, 32085740, 33690027, 44920036, 47009340, 48128610, 56150045, 57754332, 67380054, 72192915, 96257220, 101070081, 112300090, 134760108, 144385830, 168450135, 202140162, 224600180, 288771660, 336900270, 404280324, 505350405, 673800540, 1010700810, 2021401620]

約数ペア:

[(1, 2021401620), (2, 1010700810), (3, 673800540), (4, 505350405), (5, 404280324), (6, 336900270), (7, 288771660), (9, 224600180), (10, 202140162), (12, 168450135), (14, 144385830), (15, 134760108), (18, 112300090), (20, 101070081), (21, 96257220), (28, 72192915), (30, 67380054), (35, 57754332), (36, 56150045), (42, 48128610), (43, 47009340), (45, 44920036), (60, 33690027), (63, 32085740), (70, 28877166), (84, 24064305), (86, 23504670), (90, 22460018), (105, 19251444), (126, 16042870), (129, 15669780), (140, 14438583), (172, 11752335), (180, 11230009), (210, 9625722), (215, 9401868), (252, 8021435), (258, 7834890), (301, 6715620), (315, 6417148), (387, 5223260), (420, 4812861), (430, 4700934), (516, 3917445), (602, 3357810), (630, 3208574), (645, 3133956), (774, 2611630), (860, 2350467), (903, 2238540), (1204, 1678905), (1260, 1604287), (1290, 1566978), (1505, 1343124), (1548, 1305815), (1806, 1119270), (1935, 1044652), (2580, 783489), (2709, 746180), (3010, 671562), (3612, 559635), (3870, 522326), (4515, 447708), (5418, 373090), (6020, 335781), (7740, 261163), (9030, 223854), (10836, 186545), (13545, 149236), (18060, 111927), (27090, 74618), (37309, 54180)]