20144106280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{3251}}^1$

素因数の和:3575

約数の個数: 128

約数和(自身を含む): 49451212800

約数和(自身を除く): 29307106520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 190, 248, 263, 310, 380, 526, 589, 620, 760, 1052, 1178, 1240, 1315, 2104, 2356, 2630, 2945, 3251, 4712, 4997, 5260, 5890, 6502, 8153, 9994, 10520, 11780, 13004, 16255, 16306, 19988, 23560, 24985, 26008, 32510, 32612, 39976, 40765, 49970, 61769, 65020, 65224, 81530, 99940, 100781, 123538, 130040, 154907, 163060, 199880, 201562, 247076, 308845, 309814, 326120, 403124, 494152, 503905, 617690, 619628, 774535, 806248, 855013, 1007810, 1235380, 1239256, 1549070, 1710026, 1914839, 2015620, 2470760, 3098140, 3420052, 3829678, 4031240, 4275065, 6196280, 6840104, 7659356, 8550130, 9574195, 15318712, 16245247, 17100260, 19148390, 26505403, 32490494, 34200520, 38296780, 53010806, 64980988, 76593560, 81226235, 106021612, 129961976, 132527015, 162452470, 212043224, 265054030, 324904940, 503602657, 530108060, 649809880, 1007205314, 1060216120, 2014410628, 2518013285, 4028821256, 5036026570, 10072053140, 20144106280]

約数ペア:

[(1, 20144106280), (2, 10072053140), (4, 5036026570), (5, 4028821256), (8, 2518013285), (10, 2014410628), (19, 1060216120), (20, 1007205314), (31, 649809880), (38, 530108060), (40, 503602657), (62, 324904940), (76, 265054030), (95, 212043224), (124, 162452470), (152, 132527015), (155, 129961976), (190, 106021612), (248, 81226235), (263, 76593560), (310, 64980988), (380, 53010806), (526, 38296780), (589, 34200520), (620, 32490494), (760, 26505403), (1052, 19148390), (1178, 17100260), (1240, 16245247), (1315, 15318712), (2104, 9574195), (2356, 8550130), (2630, 7659356), (2945, 6840104), (3251, 6196280), (4712, 4275065), (4997, 4031240), (5260, 3829678), (5890, 3420052), (6502, 3098140), (8153, 2470760), (9994, 2015620), (10520, 1914839), (11780, 1710026), (13004, 1549070), (16255, 1239256), (16306, 1235380), (19988, 1007810), (23560, 855013), (24985, 806248), (26008, 774535), (32510, 619628), (32612, 617690), (39976, 503905), (40765, 494152), (49970, 403124), (61769, 326120), (65020, 309814), (65224, 308845), (81530, 247076), (99940, 201562), (100781, 199880), (123538, 163060), (130040, 154907)]