81258660

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:152

約数の個数: 288

約数和(自身を含む): 305665920

約数和(自身を除く): 224407260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 37, 42, 45, 49, 54, 60, 63, 70, 74, 83, 84, 90, 98, 105, 108, 111, 126, 135, 140, 147, 148, 166, 180, 185, 189, 196, 210, 222, 245, 249, 252, 259, 270, 294, 315, 332, 333, 370, 378, 415, 420, 441, 444, 490, 498, 518, 540, 555, 581, 588, 630, 666, 735, 740, 747, 756, 777, 830, 882, 945, 980, 996, 999, 1036, 1110, 1162, 1245, 1260, 1295, 1323, 1332, 1470, 1494, 1554, 1660, 1665, 1743, 1764, 1813, 1890, 1998, 2205, 2220, 2241, 2324, 2331, 2490, 2590, 2646, 2905, 2940, 2988, 3071, 3108, 3330, 3486, 3626, 3735, 3780, 3885, 3996, 4067, 4410, 4482, 4662, 4980, 4995, 5180, 5229, 5292, 5439, 5810, 6142, 6615, 6660, 6972, 6993, 7252, 7470, 7770, 8134, 8715, 8820, 8964, 9065, 9213, 9324, 9990, 10458, 10878, 11205, 11620, 11655, 12201, 12284, 13230, 13986, 14940, 15355, 15540, 15687, 16268, 16317, 17430, 18130, 18426, 19980, 20335, 20916, 21497, 21756, 22410, 23310, 24402, 26145, 26460, 27195, 27639, 27972, 30710, 31374, 32634, 34860, 34965, 36260, 36603, 36852, 40670, 42994, 44820, 46065, 46620, 48804, 48951, 52290, 54390, 55278, 61005, 61420, 62748, 64491, 65268, 69930, 73206, 78435, 81340, 81585, 82917, 85988, 92130, 97902, 104580, 107485, 108780, 109809, 110556, 122010, 128982, 138195, 139860, 146412, 150479, 156870, 163170, 165834, 183015, 184260, 193473, 195804, 214970, 219618, 244020, 244755, 257964, 276390, 300958, 313740, 322455, 326340, 331668, 366030, 386946, 414585, 429940, 439236, 451437, 489510, 549045, 552780, 580419, 601916, 644910, 732060, 752395, 773892, 829170, 902874, 967365, 979020, 1098090, 1160838, 1289820, 1354311, 1504790, 1658340, 1805748, 1934730, 2196180, 2257185, 2321676, 2708622, 2902095, 3009580, 3869460, 4062933, 4514370, 5417244, 5804190, 6771555, 8125866, 9028740, 11608380, 13543110, 16251732, 20314665, 27086220, 40629330, 81258660]

約数ペア:

[(1, 81258660), (2, 40629330), (3, 27086220), (4, 20314665), (5, 16251732), (6, 13543110), (7, 11608380), (9, 9028740), (10, 8125866), (12, 6771555), (14, 5804190), (15, 5417244), (18, 4514370), (20, 4062933), (21, 3869460), (27, 3009580), (28, 2902095), (30, 2708622), (35, 2321676), (36, 2257185), (37, 2196180), (42, 1934730), (45, 1805748), (49, 1658340), (54, 1504790), (60, 1354311), (63, 1289820), (70, 1160838), (74, 1098090), (83, 979020), (84, 967365), (90, 902874), (98, 829170), (105, 773892), (108, 752395), (111, 732060), (126, 644910), (135, 601916), (140, 580419), (147, 552780), (148, 549045), (166, 489510), (180, 451437), (185, 439236), (189, 429940), (196, 414585), (210, 386946), (222, 366030), (245, 331668), (249, 326340), (252, 322455), (259, 313740), (270, 300958), (294, 276390), (315, 257964), (332, 244755), (333, 244020), (370, 219618), (378, 214970), (415, 195804), (420, 193473), (441, 184260), (444, 183015), (490, 165834), (498, 163170), (518, 156870), (540, 150479), (555, 146412), (581, 139860), (588, 138195), (630, 128982), (666, 122010), (735, 110556), (740, 109809), (747, 108780), (756, 107485), (777, 104580), (830, 97902), (882, 92130), (945, 85988), (980, 82917), (996, 81585), (999, 81340), (1036, 78435), (1110, 73206), (1162, 69930), (1245, 65268), (1260, 64491), (1295, 62748), (1323, 61420), (1332, 61005), (1470, 55278), (1494, 54390), (1554, 52290), (1660, 48951), (1665, 48804), (1743, 46620), (1764, 46065), (1813, 44820), (1890, 42994), (1998, 40670), (2205, 36852), (2220, 36603), (2241, 36260), (2324, 34965), (2331, 34860), (2490, 32634), (2590, 31374), (2646, 30710), (2905, 27972), (2940, 27639), (2988, 27195), (3071, 26460), (3108, 26145), (3330, 24402), (3486, 23310), (3626, 22410), (3735, 21756), (3780, 21497), (3885, 20916), (3996, 20335), (4067, 19980), (4410, 18426), (4482, 18130), (4662, 17430), (4980, 16317), (4995, 16268), (5180, 15687), (5229, 15540), (5292, 15355), (5439, 14940), (5810, 13986), (6142, 13230), (6615, 12284), (6660, 12201), (6972, 11655), (6993, 11620), (7252, 11205), (7470, 10878), (7770, 10458), (8134, 9990), (8715, 9324), (8820, 9213), (8964, 9065)]