261389280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:449

約数の個数: 192

約数和(自身を含む): 883104768

約数和(自身を除く): 621715488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 103, 120, 136, 160, 170, 204, 206, 240, 255, 272, 309, 311, 340, 408, 412, 480, 510, 515, 544, 618, 622, 680, 816, 824, 933, 1020, 1030, 1236, 1244, 1360, 1545, 1555, 1632, 1648, 1751, 1866, 2040, 2060, 2472, 2488, 2720, 3090, 3110, 3296, 3502, 3732, 4080, 4120, 4665, 4944, 4976, 5253, 5287, 6180, 6220, 7004, 7464, 8160, 8240, 8755, 9330, 9888, 9952, 10506, 10574, 12360, 12440, 14008, 14928, 15861, 16480, 17510, 18660, 21012, 21148, 24720, 24880, 26265, 26435, 28016, 29856, 31722, 32033, 35020, 37320, 42024, 42296, 49440, 49760, 52530, 52870, 56032, 63444, 64066, 70040, 74640, 79305, 84048, 84592, 96099, 105060, 105740, 126888, 128132, 140080, 149280, 158610, 160165, 168096, 169184, 192198, 210120, 211480, 253776, 256264, 280160, 317220, 320330, 384396, 420240, 422960, 480495, 507552, 512528, 544561, 634440, 640660, 768792, 840480, 845920, 960990, 1025056, 1089122, 1268880, 1281320, 1537584, 1633683, 1921980, 2178244, 2537760, 2562640, 2722805, 3075168, 3267366, 3843960, 4356488, 5125280, 5445610, 6534732, 7687920, 8168415, 8712976, 10891220, 13069464, 15375840, 16336830, 17425952, 21782440, 26138928, 32673660, 43564880, 52277856, 65347320, 87129760, 130694640, 261389280]

約数ペア:

[(1, 261389280), (2, 130694640), (3, 87129760), (4, 65347320), (5, 52277856), (6, 43564880), (8, 32673660), (10, 26138928), (12, 21782440), (15, 17425952), (16, 16336830), (17, 15375840), (20, 13069464), (24, 10891220), (30, 8712976), (32, 8168415), (34, 7687920), (40, 6534732), (48, 5445610), (51, 5125280), (60, 4356488), (68, 3843960), (80, 3267366), (85, 3075168), (96, 2722805), (102, 2562640), (103, 2537760), (120, 2178244), (136, 1921980), (160, 1633683), (170, 1537584), (204, 1281320), (206, 1268880), (240, 1089122), (255, 1025056), (272, 960990), (309, 845920), (311, 840480), (340, 768792), (408, 640660), (412, 634440), (480, 544561), (510, 512528), (515, 507552), (544, 480495), (618, 422960), (622, 420240), (680, 384396), (816, 320330), (824, 317220), (933, 280160), (1020, 256264), (1030, 253776), (1236, 211480), (1244, 210120), (1360, 192198), (1545, 169184), (1555, 168096), (1632, 160165), (1648, 158610), (1751, 149280), (1866, 140080), (2040, 128132), (2060, 126888), (2472, 105740), (2488, 105060), (2720, 96099), (3090, 84592), (3110, 84048), (3296, 79305), (3502, 74640), (3732, 70040), (4080, 64066), (4120, 63444), (4665, 56032), (4944, 52870), (4976, 52530), (5253, 49760), (5287, 49440), (6180, 42296), (6220, 42024), (7004, 37320), (7464, 35020), (8160, 32033), (8240, 31722), (8755, 29856), (9330, 28016), (9888, 26435), (9952, 26265), (10506, 24880), (10574, 24720), (12360, 21148), (12440, 21012), (14008, 18660), (14928, 17510), (15861, 16480)]