161686525

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 108

約数和(自身を含む): 279383904

約数和(自身を除く): 117697379

約数列:

[1, 5, 7, 11, 13, 25, 35, 49, 55, 65, 71, 77, 91, 143, 169, 175, 245, 275, 325, 355, 385, 455, 497, 539, 637, 715, 781, 845, 923, 1001, 1183, 1225, 1775, 1859, 1925, 2275, 2485, 2695, 3185, 3479, 3575, 3905, 4225, 4615, 5005, 5467, 5915, 6461, 7007, 8281, 9295, 10153, 11999, 12425, 13013, 13475, 15925, 17395, 19525, 23075, 25025, 27335, 29575, 32305, 35035, 38269, 41405, 45227, 46475, 50765, 59995, 65065, 71071, 83993, 86975, 91091, 131989, 136675, 161525, 175175, 191345, 207025, 226135, 253825, 299975, 325325, 355355, 419965, 455455, 497497, 587951, 659945, 923923, 956725, 1130675, 1776775, 2099825, 2277275, 2487485, 2939755, 3299725, 4619615, 6467461, 12437425, 14698775, 23098075, 32337305, 161686525]

約数ペア:

[(1, 161686525), (5, 32337305), (7, 23098075), (11, 14698775), (13, 12437425), (25, 6467461), (35, 4619615), (49, 3299725), (55, 2939755), (65, 2487485), (71, 2277275), (77, 2099825), (91, 1776775), (143, 1130675), (169, 956725), (175, 923923), (245, 659945), (275, 587951), (325, 497497), (355, 455455), (385, 419965), (455, 355355), (497, 325325), (539, 299975), (637, 253825), (715, 226135), (781, 207025), (845, 191345), (923, 175175), (1001, 161525), (1183, 136675), (1225, 131989), (1775, 91091), (1859, 86975), (1925, 83993), (2275, 71071), (2485, 65065), (2695, 59995), (3185, 50765), (3479, 46475), (3575, 45227), (3905, 41405), (4225, 38269), (4615, 35035), (5005, 32305), (5467, 29575), (5915, 27335), (6461, 25025), (7007, 23075), (8281, 19525), (9295, 17395), (10153, 15925), (11999, 13475), (12425, 13013)]