20408065905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{577}}^1$

素因数の和:859

約数の個数: 96

約数和(自身を含む): 35773113600

約数和(自身を除く): 15365047695

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 199, 205, 255, 289, 577, 597, 615, 697, 867, 995, 1445, 1731, 2091, 2885, 2985, 3383, 3485, 4335, 8159, 8655, 9809, 10149, 10455, 11849, 16915, 23657, 24477, 29427, 35547, 40795, 49045, 50745, 57511, 59245, 70971, 114823, 118285, 122385, 138703, 147135, 166753, 172533, 177735, 287555, 344469, 354855, 402169, 416109, 500259, 574115, 693515, 833765, 862665, 1206507, 1722345, 1951991, 2010845, 2080545, 2357951, 2501295, 4707743, 5855973, 6032535, 6836873, 7073853, 9759955, 11789755, 14123229, 20510619, 23538715, 29279865, 33183847, 34184365, 35369265, 70616145, 80031631, 99551541, 102553095, 165919235, 240094893, 400158155, 497757705, 1200474465, 1360537727, 4081613181, 6802688635, 20408065905]

約数ペア:

[(1, 20408065905), (3, 6802688635), (5, 4081613181), (15, 1360537727), (17, 1200474465), (41, 497757705), (51, 400158155), (85, 240094893), (123, 165919235), (199, 102553095), (205, 99551541), (255, 80031631), (289, 70616145), (577, 35369265), (597, 34184365), (615, 33183847), (697, 29279865), (867, 23538715), (995, 20510619), (1445, 14123229), (1731, 11789755), (2091, 9759955), (2885, 7073853), (2985, 6836873), (3383, 6032535), (3485, 5855973), (4335, 4707743), (8159, 2501295), (8655, 2357951), (9809, 2080545), (10149, 2010845), (10455, 1951991), (11849, 1722345), (16915, 1206507), (23657, 862665), (24477, 833765), (29427, 693515), (35547, 574115), (40795, 500259), (49045, 416109), (50745, 402169), (57511, 354855), (59245, 344469), (70971, 287555), (114823, 177735), (118285, 172533), (122385, 166753), (138703, 147135)]