20123992900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{4621}}^1$

素因数の和:4790

約数の個数: 144

約数和(自身を含む): 49394463552

約数和(自身を除く): 29270470652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 100, 107, 110, 148, 185, 214, 220, 275, 370, 407, 428, 535, 550, 740, 814, 925, 1070, 1100, 1177, 1628, 1850, 2035, 2140, 2354, 2675, 3700, 3959, 4070, 4621, 4708, 5350, 5885, 7918, 8140, 9242, 10175, 10700, 11770, 15836, 18484, 19795, 20350, 23105, 23540, 29425, 39590, 40700, 43549, 46210, 50831, 58850, 79180, 87098, 92420, 98975, 101662, 115525, 117700, 170977, 174196, 197950, 203324, 217745, 231050, 254155, 341954, 395900, 435490, 462100, 494447, 508310, 683908, 854885, 870980, 988894, 1016620, 1088725, 1270775, 1709770, 1880747, 1977788, 2177450, 2472235, 2541550, 3419540, 3761494, 4274425, 4354900, 4944470, 5083100, 5438917, 7522988, 8548850, 9403735, 9888940, 10877834, 12361175, 17097700, 18294539, 18807470, 21755668, 24722350, 27194585, 36589078, 37614940, 47018675, 49444700, 54389170, 73178156, 91472695, 94037350, 108778340, 135972925, 182945390, 188074700, 201239929, 271945850, 365890780, 402479858, 457363475, 543891700, 804959716, 914726950, 1006199645, 1829453900, 2012399290, 4024798580, 5030998225, 10061996450, 20123992900]

約数ペア:

[(1, 20123992900), (2, 10061996450), (4, 5030998225), (5, 4024798580), (10, 2012399290), (11, 1829453900), (20, 1006199645), (22, 914726950), (25, 804959716), (37, 543891700), (44, 457363475), (50, 402479858), (55, 365890780), (74, 271945850), (100, 201239929), (107, 188074700), (110, 182945390), (148, 135972925), (185, 108778340), (214, 94037350), (220, 91472695), (275, 73178156), (370, 54389170), (407, 49444700), (428, 47018675), (535, 37614940), (550, 36589078), (740, 27194585), (814, 24722350), (925, 21755668), (1070, 18807470), (1100, 18294539), (1177, 17097700), (1628, 12361175), (1850, 10877834), (2035, 9888940), (2140, 9403735), (2354, 8548850), (2675, 7522988), (3700, 5438917), (3959, 5083100), (4070, 4944470), (4621, 4354900), (4708, 4274425), (5350, 3761494), (5885, 3419540), (7918, 2541550), (8140, 2472235), (9242, 2177450), (10175, 1977788), (10700, 1880747), (11770, 1709770), (15836, 1270775), (18484, 1088725), (19795, 1016620), (20350, 988894), (23105, 870980), (23540, 854885), (29425, 683908), (39590, 508310), (40700, 494447), (43549, 462100), (46210, 435490), (50831, 395900), (58850, 341954), (79180, 254155), (87098, 231050), (92420, 217745), (98975, 203324), (101662, 197950), (115525, 174196), (117700, 170977)]