20121304720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1\times {\mathrm{2389}}^1$

素因数の和:2993

約数の個数: 160

約数和(自身を含む): 54155640960

約数和(自身を除く): 34034336240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 563, 680, 748, 880, 935, 1126, 1360, 1496, 1870, 2252, 2389, 2815, 2992, 3740, 4504, 4778, 5630, 6193, 7480, 9008, 9556, 9571, 11260, 11945, 12386, 14960, 19112, 19142, 22520, 23890, 24772, 26279, 30965, 38224, 38284, 40613, 45040, 47780, 47855, 49544, 52558, 61930, 76568, 81226, 95560, 95710, 99088, 105116, 105281, 123860, 131395, 153136, 162452, 191120, 191420, 203065, 210232, 210562, 247720, 262790, 324904, 382840, 406130, 420464, 421124, 446743, 495440, 525580, 526405, 649808, 765680, 812260, 842248, 893486, 1051160, 1052810, 1345007, 1624520, 1684496, 1786972, 2102320, 2105620, 2233715, 2690014, 3249040, 3573944, 4211240, 4467430, 5380028, 6725035, 7147888, 8422480, 8934860, 10760056, 13450070, 14795077, 17869720, 21520112, 22865119, 26900140, 29590154, 35739440, 45730238, 53800280, 59180308, 73975385, 91460476, 107600560, 114325595, 118360616, 147950770, 182920952, 228651190, 236721232, 251516309, 295901540, 365841904, 457302380, 503032618, 591803080, 914604760, 1006065236, 1183606160, 1257581545, 1829209520, 2012130472, 2515163090, 4024260944, 5030326180, 10060652360, 20121304720]

約数ペア:

[(1, 20121304720), (2, 10060652360), (4, 5030326180), (5, 4024260944), (8, 2515163090), (10, 2012130472), (11, 1829209520), (16, 1257581545), (17, 1183606160), (20, 1006065236), (22, 914604760), (34, 591803080), (40, 503032618), (44, 457302380), (55, 365841904), (68, 295901540), (80, 251516309), (85, 236721232), (88, 228651190), (110, 182920952), (136, 147950770), (170, 118360616), (176, 114325595), (187, 107600560), (220, 91460476), (272, 73975385), (340, 59180308), (374, 53800280), (440, 45730238), (563, 35739440), (680, 29590154), (748, 26900140), (880, 22865119), (935, 21520112), (1126, 17869720), (1360, 14795077), (1496, 13450070), (1870, 10760056), (2252, 8934860), (2389, 8422480), (2815, 7147888), (2992, 6725035), (3740, 5380028), (4504, 4467430), (4778, 4211240), (5630, 3573944), (6193, 3249040), (7480, 2690014), (9008, 2233715), (9556, 2105620), (9571, 2102320), (11260, 1786972), (11945, 1684496), (12386, 1624520), (14960, 1345007), (19112, 1052810), (19142, 1051160), (22520, 893486), (23890, 842248), (24772, 812260), (26279, 765680), (30965, 649808), (38224, 526405), (38284, 525580), (40613, 495440), (45040, 446743), (47780, 421124), (47855, 420464), (49544, 406130), (52558, 382840), (61930, 324904), (76568, 262790), (81226, 247720), (95560, 210562), (95710, 210232), (99088, 203065), (105116, 191420), (105281, 191120), (123860, 162452), (131395, 153136)]