68118820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 144

約数和(自身を含む): 186157440

約数和(自身を除く): 118038620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 71, 77, 89, 98, 110, 140, 142, 154, 178, 196, 220, 245, 284, 308, 355, 356, 385, 445, 490, 497, 539, 623, 710, 770, 781, 890, 979, 980, 994, 1078, 1246, 1420, 1540, 1562, 1780, 1958, 1988, 2156, 2485, 2492, 2695, 3115, 3124, 3479, 3905, 3916, 4361, 4895, 4970, 5390, 5467, 6230, 6319, 6853, 6958, 7810, 8722, 9790, 9940, 10780, 10934, 12460, 12638, 13706, 13916, 15620, 17395, 17444, 19580, 21805, 21868, 25276, 27335, 27412, 31595, 34265, 34790, 38269, 43610, 44233, 47971, 54670, 63190, 68530, 69509, 69580, 76538, 87220, 88466, 95942, 109340, 126380, 137060, 139018, 153076, 176932, 191345, 191884, 221165, 239855, 278036, 309631, 347545, 382690, 442330, 479710, 486563, 619262, 695090, 765380, 884660, 959420, 973126, 1238524, 1390180, 1548155, 1946252, 2432815, 3096310, 3405941, 4865630, 6192620, 6811882, 9731260, 13623764, 17029705, 34059410, 68118820]

約数ペア:

[(1, 68118820), (2, 34059410), (4, 17029705), (5, 13623764), (7, 9731260), (10, 6811882), (11, 6192620), (14, 4865630), (20, 3405941), (22, 3096310), (28, 2432815), (35, 1946252), (44, 1548155), (49, 1390180), (55, 1238524), (70, 973126), (71, 959420), (77, 884660), (89, 765380), (98, 695090), (110, 619262), (140, 486563), (142, 479710), (154, 442330), (178, 382690), (196, 347545), (220, 309631), (245, 278036), (284, 239855), (308, 221165), (355, 191884), (356, 191345), (385, 176932), (445, 153076), (490, 139018), (497, 137060), (539, 126380), (623, 109340), (710, 95942), (770, 88466), (781, 87220), (890, 76538), (979, 69580), (980, 69509), (994, 68530), (1078, 63190), (1246, 54670), (1420, 47971), (1540, 44233), (1562, 43610), (1780, 38269), (1958, 34790), (1988, 34265), (2156, 31595), (2485, 27412), (2492, 27335), (2695, 25276), (3115, 21868), (3124, 21805), (3479, 19580), (3905, 17444), (3916, 17395), (4361, 15620), (4895, 13916), (4970, 13706), (5390, 12638), (5467, 12460), (6230, 10934), (6319, 10780), (6853, 9940), (6958, 9790), (7810, 8722)]