87879540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:518

約数の個数: 144

約数和(自身を含む): 290957184

約数和(自身を除く): 203077644

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 71, 84, 98, 105, 140, 142, 147, 196, 210, 213, 245, 284, 294, 355, 420, 421, 426, 490, 497, 588, 710, 735, 842, 852, 980, 994, 1065, 1263, 1420, 1470, 1491, 1684, 1988, 2105, 2130, 2485, 2526, 2940, 2947, 2982, 3479, 4210, 4260, 4970, 5052, 5894, 5964, 6315, 6958, 7455, 8420, 8841, 9940, 10437, 11788, 12630, 13916, 14735, 14910, 17395, 17682, 20629, 20874, 25260, 29470, 29820, 29891, 34790, 35364, 41258, 41748, 44205, 52185, 58940, 59782, 61887, 69580, 82516, 88410, 89673, 103145, 104370, 119564, 123774, 149455, 176820, 179346, 206290, 208740, 209237, 247548, 298910, 309435, 358692, 412580, 418474, 448365, 597820, 618870, 627711, 836948, 896730, 1046185, 1237740, 1255422, 1464659, 1793460, 2092370, 2510844, 2929318, 3138555, 4184740, 4393977, 5858636, 6277110, 7323295, 8787954, 12554220, 14646590, 17575908, 21969885, 29293180, 43939770, 87879540]

約数ペア:

[(1, 87879540), (2, 43939770), (3, 29293180), (4, 21969885), (5, 17575908), (6, 14646590), (7, 12554220), (10, 8787954), (12, 7323295), (14, 6277110), (15, 5858636), (20, 4393977), (21, 4184740), (28, 3138555), (30, 2929318), (35, 2510844), (42, 2092370), (49, 1793460), (60, 1464659), (70, 1255422), (71, 1237740), (84, 1046185), (98, 896730), (105, 836948), (140, 627711), (142, 618870), (147, 597820), (196, 448365), (210, 418474), (213, 412580), (245, 358692), (284, 309435), (294, 298910), (355, 247548), (420, 209237), (421, 208740), (426, 206290), (490, 179346), (497, 176820), (588, 149455), (710, 123774), (735, 119564), (842, 104370), (852, 103145), (980, 89673), (994, 88410), (1065, 82516), (1263, 69580), (1420, 61887), (1470, 59782), (1491, 58940), (1684, 52185), (1988, 44205), (2105, 41748), (2130, 41258), (2485, 35364), (2526, 34790), (2940, 29891), (2947, 29820), (2982, 29470), (3479, 25260), (4210, 20874), (4260, 20629), (4970, 17682), (5052, 17395), (5894, 14910), (5964, 14735), (6315, 13916), (6958, 12630), (7455, 11788), (8420, 10437), (8841, 9940)]