81121950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{283}}^1$

素因数の和:328

約数の個数: 216

約数和(自身を含む): 273998088

約数和(自身を除く): 192876138

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 30, 35, 39, 42, 45, 49, 50, 63, 65, 70, 75, 78, 90, 91, 98, 105, 117, 126, 130, 147, 150, 175, 182, 195, 210, 225, 234, 245, 273, 283, 294, 315, 325, 350, 390, 441, 450, 455, 490, 525, 546, 566, 585, 630, 637, 650, 735, 819, 849, 882, 910, 975, 1050, 1170, 1225, 1274, 1365, 1415, 1470, 1575, 1638, 1698, 1911, 1950, 1981, 2205, 2275, 2450, 2547, 2730, 2830, 2925, 3150, 3185, 3675, 3679, 3822, 3962, 4095, 4245, 4410, 4550, 5094, 5733, 5850, 5943, 6370, 6825, 7075, 7350, 7358, 8190, 8490, 9555, 9905, 11025, 11037, 11466, 11886, 12735, 13650, 13867, 14150, 15925, 17829, 18395, 19110, 19810, 20475, 21225, 22050, 22074, 25470, 25753, 27734, 28665, 29715, 31850, 33111, 35658, 36790, 40950, 41601, 42450, 47775, 49525, 51506, 55185, 57330, 59430, 63675, 66222, 69335, 77259, 83202, 89145, 91975, 95550, 99050, 110370, 124803, 127350, 128765, 138670, 143325, 148575, 154518, 165555, 178290, 180271, 183950, 208005, 231777, 249606, 257530, 275925, 286650, 297150, 331110, 346675, 360542, 386295, 416010, 445725, 463554, 540813, 551850, 624015, 643825, 693350, 772590, 827775, 891450, 901355, 1040025, 1081626, 1158885, 1248030, 1287650, 1622439, 1655550, 1802710, 1931475, 2080050, 2317770, 2704065, 3120075, 3244878, 3862950, 4506775, 5408130, 5794425, 6240150, 8112195, 9013550, 11588850, 13520325, 16224390, 27040650, 40560975, 81121950]

約数ペア:

[(1, 81121950), (2, 40560975), (3, 27040650), (5, 16224390), (6, 13520325), (7, 11588850), (9, 9013550), (10, 8112195), (13, 6240150), (14, 5794425), (15, 5408130), (18, 4506775), (21, 3862950), (25, 3244878), (26, 3120075), (30, 2704065), (35, 2317770), (39, 2080050), (42, 1931475), (45, 1802710), (49, 1655550), (50, 1622439), (63, 1287650), (65, 1248030), (70, 1158885), (75, 1081626), (78, 1040025), (90, 901355), (91, 891450), (98, 827775), (105, 772590), (117, 693350), (126, 643825), (130, 624015), (147, 551850), (150, 540813), (175, 463554), (182, 445725), (195, 416010), (210, 386295), (225, 360542), (234, 346675), (245, 331110), (273, 297150), (283, 286650), (294, 275925), (315, 257530), (325, 249606), (350, 231777), (390, 208005), (441, 183950), (450, 180271), (455, 178290), (490, 165555), (525, 154518), (546, 148575), (566, 143325), (585, 138670), (630, 128765), (637, 127350), (650, 124803), (735, 110370), (819, 99050), (849, 95550), (882, 91975), (910, 89145), (975, 83202), (1050, 77259), (1170, 69335), (1225, 66222), (1274, 63675), (1365, 59430), (1415, 57330), (1470, 55185), (1575, 51506), (1638, 49525), (1698, 47775), (1911, 42450), (1950, 41601), (1981, 40950), (2205, 36790), (2275, 35658), (2450, 33111), (2547, 31850), (2730, 29715), (2830, 28665), (2925, 27734), (3150, 25753), (3185, 25470), (3675, 22074), (3679, 22050), (3822, 21225), (3962, 20475), (4095, 19810), (4245, 19110), (4410, 18395), (4550, 17829), (5094, 15925), (5733, 14150), (5850, 13867), (5943, 13650), (6370, 12735), (6825, 11886), (7075, 11466), (7350, 11037), (7358, 11025), (8190, 9905), (8490, 9555)]