20967660

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{43}}^2$

素因数の和:114

約数の個数: 180

約数和(自身を含む): 76961808

約数和(自身を除く): 55994148

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 43, 45, 54, 60, 63, 70, 81, 84, 86, 90, 105, 108, 126, 129, 135, 140, 162, 172, 180, 189, 210, 215, 252, 258, 270, 301, 315, 324, 378, 387, 405, 420, 430, 516, 540, 567, 602, 630, 645, 756, 774, 810, 860, 903, 945, 1134, 1161, 1204, 1260, 1290, 1505, 1548, 1620, 1806, 1849, 1890, 1935, 2268, 2322, 2580, 2709, 2835, 3010, 3483, 3612, 3698, 3780, 3870, 4515, 4644, 5418, 5547, 5670, 5805, 6020, 6966, 7396, 7740, 8127, 9030, 9245, 10836, 11094, 11340, 11610, 12943, 13545, 13932, 16254, 16641, 17415, 18060, 18490, 22188, 23220, 24381, 25886, 27090, 27735, 32508, 33282, 34830, 36980, 38829, 40635, 48762, 49923, 51772, 54180, 55470, 64715, 66564, 69660, 77658, 81270, 83205, 97524, 99846, 110940, 116487, 121905, 129430, 149769, 155316, 162540, 166410, 194145, 199692, 232974, 243810, 249615, 258860, 299538, 332820, 349461, 388290, 465948, 487620, 499230, 582435, 599076, 698922, 748845, 776580, 998460, 1048383, 1164870, 1397844, 1497690, 1747305, 2096766, 2329740, 2995380, 3494610, 4193532, 5241915, 6989220, 10483830, 20967660]

約数ペア:

[(1, 20967660), (2, 10483830), (3, 6989220), (4, 5241915), (5, 4193532), (6, 3494610), (7, 2995380), (9, 2329740), (10, 2096766), (12, 1747305), (14, 1497690), (15, 1397844), (18, 1164870), (20, 1048383), (21, 998460), (27, 776580), (28, 748845), (30, 698922), (35, 599076), (36, 582435), (42, 499230), (43, 487620), (45, 465948), (54, 388290), (60, 349461), (63, 332820), (70, 299538), (81, 258860), (84, 249615), (86, 243810), (90, 232974), (105, 199692), (108, 194145), (126, 166410), (129, 162540), (135, 155316), (140, 149769), (162, 129430), (172, 121905), (180, 116487), (189, 110940), (210, 99846), (215, 97524), (252, 83205), (258, 81270), (270, 77658), (301, 69660), (315, 66564), (324, 64715), (378, 55470), (387, 54180), (405, 51772), (420, 49923), (430, 48762), (516, 40635), (540, 38829), (567, 36980), (602, 34830), (630, 33282), (645, 32508), (756, 27735), (774, 27090), (810, 25886), (860, 24381), (903, 23220), (945, 22188), (1134, 18490), (1161, 18060), (1204, 17415), (1260, 16641), (1290, 16254), (1505, 13932), (1548, 13545), (1620, 12943), (1806, 11610), (1849, 11340), (1890, 11094), (1935, 10836), (2268, 9245), (2322, 9030), (2580, 8127), (2709, 7740), (2835, 7396), (3010, 6966), (3483, 6020), (3612, 5805), (3698, 5670), (3780, 5547), (3870, 5418), (4515, 4644)]