77860020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:470

約数の個数: 144

約数和(自身を含む): 257862528

約数和(自身を除く): 180002508

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, 373, 420, 426, 490, 497, 588, 710, 735, 746, 852, 980, 994, 1065, 1119, 1420, 1470, 1491, 1492, 1865, 1988, 2130, 2238, 2485, 2611, 2940, 2982, 3479, 3730, 4260, 4476, 4970, 5222, 5595, 5964, 6958, 7455, 7460, 7833, 9940, 10437, 10444, 11190, 13055, 13916, 14910, 15666, 17395, 18277, 20874, 22380, 26110, 26483, 29820, 31332, 34790, 36554, 39165, 41748, 52185, 52220, 52966, 54831, 69580, 73108, 78330, 79449, 91385, 104370, 105932, 109662, 132415, 156660, 158898, 182770, 185381, 208740, 219324, 264830, 274155, 317796, 365540, 370762, 397245, 529660, 548310, 556143, 741524, 794490, 926905, 1096620, 1112286, 1297667, 1588980, 1853810, 2224572, 2595334, 2780715, 3707620, 3893001, 5190668, 5561430, 6488335, 7786002, 11122860, 12976670, 15572004, 19465005, 25953340, 38930010, 77860020]

約数ペア:

[(1, 77860020), (2, 38930010), (3, 25953340), (4, 19465005), (5, 15572004), (6, 12976670), (7, 11122860), (10, 7786002), (12, 6488335), (14, 5561430), (15, 5190668), (20, 3893001), (21, 3707620), (28, 2780715), (30, 2595334), (35, 2224572), (42, 1853810), (49, 1588980), (60, 1297667), (70, 1112286), (71, 1096620), (84, 926905), (98, 794490), (105, 741524), (140, 556143), (142, 548310), (147, 529660), (196, 397245), (210, 370762), (213, 365540), (245, 317796), (284, 274155), (294, 264830), (355, 219324), (373, 208740), (420, 185381), (426, 182770), (490, 158898), (497, 156660), (588, 132415), (710, 109662), (735, 105932), (746, 104370), (852, 91385), (980, 79449), (994, 78330), (1065, 73108), (1119, 69580), (1420, 54831), (1470, 52966), (1491, 52220), (1492, 52185), (1865, 41748), (1988, 39165), (2130, 36554), (2238, 34790), (2485, 31332), (2611, 29820), (2940, 26483), (2982, 26110), (3479, 22380), (3730, 20874), (4260, 18277), (4476, 17395), (4970, 15666), (5222, 14910), (5595, 13916), (5964, 13055), (6958, 11190), (7455, 10444), (7460, 10437), (7833, 9940)]