20481771240

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{142591}}^1$

素因数の和:142637

約数の個数: 256

約数和(自身を含む): 82132992000

約数和(自身を除く): 61651220760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 266, 270, 280, 285, 315, 342, 360, 378, 380, 399, 420, 456, 504, 513, 532, 540, 570, 630, 665, 684, 756, 760, 798, 840, 855, 945, 1026, 1064, 1080, 1140, 1197, 1260, 1330, 1368, 1512, 1596, 1710, 1890, 1995, 2052, 2280, 2394, 2520, 2565, 2660, 3192, 3420, 3591, 3780, 3990, 4104, 4788, 5130, 5320, 5985, 6840, 7182, 7560, 7980, 9576, 10260, 11970, 14364, 15960, 17955, 20520, 23940, 28728, 35910, 47880, 71820, 142591, 143640, 285182, 427773, 570364, 712955, 855546, 998137, 1140728, 1283319, 1425910, 1711092, 1996274, 2138865, 2566638, 2709229, 2851820, 2994411, 3422184, 3849957, 3992548, 4277730, 4990685, 5133276, 5418458, 5703640, 5988822, 6416595, 7699914, 7985096, 8127687, 8555460, 8983233, 9981370, 10266552, 10836916, 11977644, 12833190, 13546145, 14972055, 15399828, 16255374, 17110920, 17966466, 18964603, 19249785, 19962740, 21673832, 23955288, 24383061, 25666380, 26949699, 27092290, 29944110, 30799656, 32510748, 35932932, 37929206, 38499570, 39925480, 40638435, 44916165, 48766122, 51332760, 53899398, 54184580, 56893809, 59888220, 65021496, 71865864, 73149183, 75858412, 76999140, 81276870, 89832330, 94823015, 97532244, 107798796, 108369160, 113787618, 119776440, 121915305, 134748495, 146298366, 151716824, 153998280, 162553740, 170681427, 179664660, 189646030, 195064488, 215597592, 227575236, 243830610, 269496990, 284469045, 292596732, 325107480, 341362854, 359329320, 365745915, 379292060, 455150472, 487661220, 512044281, 538993980, 568938090, 585193464, 682725708, 731491830, 758584120, 853407135, 975322440, 1024088562, 1077987960, 1137876180, 1365451416, 1462983660, 1706814270, 2048177124, 2275752360, 2560221405, 2925967320, 3413628540, 4096354248, 5120442810, 6827257080, 10240885620, 20481771240]

約数ペア:

[(1, 20481771240), (2, 10240885620), (3, 6827257080), (4, 5120442810), (5, 4096354248), (6, 3413628540), (7, 2925967320), (8, 2560221405), (9, 2275752360), (10, 2048177124), (12, 1706814270), (14, 1462983660), (15, 1365451416), (18, 1137876180), (19, 1077987960), (20, 1024088562), (21, 975322440), (24, 853407135), (27, 758584120), (28, 731491830), (30, 682725708), (35, 585193464), (36, 568938090), (38, 538993980), (40, 512044281), (42, 487661220), (45, 455150472), (54, 379292060), (56, 365745915), (57, 359329320), (60, 341362854), (63, 325107480), (70, 292596732), (72, 284469045), (76, 269496990), (84, 243830610), (90, 227575236), (95, 215597592), (105, 195064488), (108, 189646030), (114, 179664660), (120, 170681427), (126, 162553740), (133, 153998280), (135, 151716824), (140, 146298366), (152, 134748495), (168, 121915305), (171, 119776440), (180, 113787618), (189, 108369160), (190, 107798796), (210, 97532244), (216, 94823015), (228, 89832330), (252, 81276870), (266, 76999140), (270, 75858412), (280, 73149183), (285, 71865864), (315, 65021496), (342, 59888220), (360, 56893809), (378, 54184580), (380, 53899398), (399, 51332760), (420, 48766122), (456, 44916165), (504, 40638435), (513, 39925480), (532, 38499570), (540, 37929206), (570, 35932932), (630, 32510748), (665, 30799656), (684, 29944110), (756, 27092290), (760, 26949699), (798, 25666380), (840, 24383061), (855, 23955288), (945, 21673832), (1026, 19962740), (1064, 19249785), (1080, 18964603), (1140, 17966466), (1197, 17110920), (1260, 16255374), (1330, 15399828), (1368, 14972055), (1512, 13546145), (1596, 12833190), (1710, 11977644), (1890, 10836916), (1995, 10266552), (2052, 9981370), (2280, 8983233), (2394, 8555460), (2520, 8127687), (2565, 7985096), (2660, 7699914), (3192, 6416595), (3420, 5988822), (3591, 5703640), (3780, 5418458), (3990, 5133276), (4104, 4990685), (4788, 4277730), (5130, 3992548), (5320, 3849957), (5985, 3422184), (6840, 2994411), (7182, 2851820), (7560, 2709229), (7980, 2566638), (9576, 2138865), (10260, 1996274), (11970, 1711092), (14364, 1425910), (15960, 1283319), (17955, 1140728), (20520, 998137), (23940, 855546), (28728, 712955), (35910, 570364), (47880, 427773), (71820, 285182), (142591, 143640)]