20123621840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{3659}}^1$

素因数の和:3770

約数の個数: 240

約数和(自身を含む): 57739340160

約数和(自身を除く): 37615718320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 61, 70, 80, 92, 98, 112, 115, 122, 140, 161, 184, 196, 230, 244, 245, 280, 305, 322, 368, 392, 427, 460, 488, 490, 560, 610, 644, 784, 805, 854, 920, 976, 980, 1127, 1220, 1288, 1403, 1610, 1708, 1840, 1960, 2135, 2254, 2440, 2576, 2806, 2989, 3220, 3416, 3659, 3920, 4270, 4508, 4880, 5612, 5635, 5978, 6440, 6832, 7015, 7318, 8540, 9016, 9821, 11224, 11270, 11956, 12880, 14030, 14636, 14945, 17080, 18032, 18295, 19642, 22448, 22540, 23912, 25613, 28060, 29272, 29890, 34160, 36590, 39284, 45080, 47824, 49105, 51226, 56120, 58544, 59780, 68747, 73180, 78568, 84157, 90160, 98210, 102452, 112240, 119560, 128065, 137494, 146360, 157136, 168314, 179291, 196420, 204904, 223199, 239120, 256130, 274988, 292720, 336628, 343735, 358582, 392840, 409808, 420785, 446398, 512260, 549976, 589099, 673256, 687470, 717164, 785680, 841570, 892796, 896455, 1024520, 1099952, 1115995, 1178198, 1346512, 1374940, 1434328, 1562393, 1683140, 1785592, 1792910, 2049040, 2231990, 2356396, 2749880, 2868656, 2945495, 3124786, 3366280, 3571184, 3585820, 4123693, 4463980, 4712792, 5133577, 5499760, 5890990, 6249572, 6732560, 7171640, 7811965, 8247386, 8927960, 9425584, 10267154, 10936751, 11781980, 12499144, 14343280, 15623930, 16494772, 17855920, 20534308, 20618465, 21873502, 23563960, 24998288, 25667885, 31247860, 32989544, 35935039, 41068616, 41236930, 43747004, 47127920, 51335770, 54683755, 62495720, 65979088, 71870078, 82137232, 82473860, 87494008, 102671540, 109367510, 124991440, 143740156, 164947720, 174988016, 179675195, 205343080, 218735020, 251545273, 287480312, 329895440, 359350390, 410686160, 437470040, 503090546, 574960624, 718700780, 874940080, 1006181092, 1257726365, 1437401560, 2012362184, 2515452730, 2874803120, 4024724368, 5030905460, 10061810920, 20123621840]

約数ペア:

[(1, 20123621840), (2, 10061810920), (4, 5030905460), (5, 4024724368), (7, 2874803120), (8, 2515452730), (10, 2012362184), (14, 1437401560), (16, 1257726365), (20, 1006181092), (23, 874940080), (28, 718700780), (35, 574960624), (40, 503090546), (46, 437470040), (49, 410686160), (56, 359350390), (61, 329895440), (70, 287480312), (80, 251545273), (92, 218735020), (98, 205343080), (112, 179675195), (115, 174988016), (122, 164947720), (140, 143740156), (161, 124991440), (184, 109367510), (196, 102671540), (230, 87494008), (244, 82473860), (245, 82137232), (280, 71870078), (305, 65979088), (322, 62495720), (368, 54683755), (392, 51335770), (427, 47127920), (460, 43747004), (488, 41236930), (490, 41068616), (560, 35935039), (610, 32989544), (644, 31247860), (784, 25667885), (805, 24998288), (854, 23563960), (920, 21873502), (976, 20618465), (980, 20534308), (1127, 17855920), (1220, 16494772), (1288, 15623930), (1403, 14343280), (1610, 12499144), (1708, 11781980), (1840, 10936751), (1960, 10267154), (2135, 9425584), (2254, 8927960), (2440, 8247386), (2576, 7811965), (2806, 7171640), (2989, 6732560), (3220, 6249572), (3416, 5890990), (3659, 5499760), (3920, 5133577), (4270, 4712792), (4508, 4463980), (4880, 4123693), (5612, 3585820), (5635, 3571184), (5978, 3366280), (6440, 3124786), (6832, 2945495), (7015, 2868656), (7318, 2749880), (8540, 2356396), (9016, 2231990), (9821, 2049040), (11224, 1792910), (11270, 1785592), (11956, 1683140), (12880, 1562393), (14030, 1434328), (14636, 1374940), (14945, 1346512), (17080, 1178198), (18032, 1115995), (18295, 1099952), (19642, 1024520), (22448, 896455), (22540, 892796), (23912, 841570), (25613, 785680), (28060, 717164), (29272, 687470), (29890, 673256), (34160, 589099), (36590, 549976), (39284, 512260), (45080, 446398), (47824, 420785), (49105, 409808), (51226, 392840), (56120, 358582), (58544, 343735), (59780, 336628), (68747, 292720), (73180, 274988), (78568, 256130), (84157, 239120), (90160, 223199), (98210, 204904), (102452, 196420), (112240, 179291), (119560, 168314), (128065, 157136), (137494, 146360)]