81818280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1$

素因数の和:524

約数の個数: 192

約数和(自身を含む): 291891600

約数和(自身を除く): 210073320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 29, 30, 34, 36, 40, 45, 51, 58, 60, 68, 72, 85, 87, 90, 102, 116, 120, 136, 145, 153, 170, 174, 180, 204, 232, 255, 261, 290, 306, 340, 348, 360, 408, 435, 461, 493, 510, 522, 580, 612, 680, 696, 765, 870, 922, 986, 1020, 1044, 1160, 1224, 1305, 1383, 1479, 1530, 1740, 1844, 1972, 2040, 2088, 2305, 2465, 2610, 2766, 2958, 3060, 3480, 3688, 3944, 4149, 4437, 4610, 4930, 5220, 5532, 5916, 6120, 6915, 7395, 7837, 8298, 8874, 9220, 9860, 10440, 11064, 11832, 13369, 13830, 14790, 15674, 16596, 17748, 18440, 19720, 20745, 22185, 23511, 26738, 27660, 29580, 31348, 33192, 35496, 39185, 40107, 41490, 44370, 47022, 53476, 55320, 59160, 62696, 66845, 70533, 78370, 80214, 82980, 88740, 94044, 106952, 117555, 120321, 133690, 141066, 156740, 160428, 165960, 177480, 188088, 200535, 227273, 235110, 240642, 267380, 282132, 313480, 320856, 352665, 401070, 454546, 470220, 481284, 534760, 564264, 601605, 681819, 705330, 802140, 909092, 940440, 962568, 1136365, 1203210, 1363638, 1410660, 1604280, 1818184, 2045457, 2272730, 2406420, 2727276, 2821320, 3409095, 4090914, 4545460, 4812840, 5454552, 6818190, 8181828, 9090920, 10227285, 13636380, 16363656, 20454570, 27272760, 40909140, 81818280]

約数ペア:

[(1, 81818280), (2, 40909140), (3, 27272760), (4, 20454570), (5, 16363656), (6, 13636380), (8, 10227285), (9, 9090920), (10, 8181828), (12, 6818190), (15, 5454552), (17, 4812840), (18, 4545460), (20, 4090914), (24, 3409095), (29, 2821320), (30, 2727276), (34, 2406420), (36, 2272730), (40, 2045457), (45, 1818184), (51, 1604280), (58, 1410660), (60, 1363638), (68, 1203210), (72, 1136365), (85, 962568), (87, 940440), (90, 909092), (102, 802140), (116, 705330), (120, 681819), (136, 601605), (145, 564264), (153, 534760), (170, 481284), (174, 470220), (180, 454546), (204, 401070), (232, 352665), (255, 320856), (261, 313480), (290, 282132), (306, 267380), (340, 240642), (348, 235110), (360, 227273), (408, 200535), (435, 188088), (461, 177480), (493, 165960), (510, 160428), (522, 156740), (580, 141066), (612, 133690), (680, 120321), (696, 117555), (765, 106952), (870, 94044), (922, 88740), (986, 82980), (1020, 80214), (1044, 78370), (1160, 70533), (1224, 66845), (1305, 62696), (1383, 59160), (1479, 55320), (1530, 53476), (1740, 47022), (1844, 44370), (1972, 41490), (2040, 40107), (2088, 39185), (2305, 35496), (2465, 33192), (2610, 31348), (2766, 29580), (2958, 27660), (3060, 26738), (3480, 23511), (3688, 22185), (3944, 20745), (4149, 19720), (4437, 18440), (4610, 17748), (4930, 16596), (5220, 15674), (5532, 14790), (5916, 13830), (6120, 13369), (6915, 11832), (7395, 11064), (7837, 10440), (8298, 9860), (8874, 9220)]