20707260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1049}}^1$

素因数の和:1115

約数の個数: 96

約数和(自身を含む): 67737600

約数和(自身を除く): 47030340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1049, 1316, 1410, 1645, 1974, 2098, 2820, 3147, 3290, 3948, 4196, 4935, 5245, 6294, 6580, 7343, 9870, 10490, 12588, 14686, 15735, 19740, 20980, 22029, 29372, 31470, 36715, 44058, 49303, 62940, 73430, 88116, 98606, 110145, 146860, 147909, 197212, 220290, 246515, 295818, 345121, 440580, 493030, 591636, 690242, 739545, 986060, 1035363, 1380484, 1479090, 1725605, 2070726, 2958180, 3451210, 4141452, 5176815, 6902420, 10353630, 20707260]

約数ペア:

[(1, 20707260), (2, 10353630), (3, 6902420), (4, 5176815), (5, 4141452), (6, 3451210), (7, 2958180), (10, 2070726), (12, 1725605), (14, 1479090), (15, 1380484), (20, 1035363), (21, 986060), (28, 739545), (30, 690242), (35, 591636), (42, 493030), (47, 440580), (60, 345121), (70, 295818), (84, 246515), (94, 220290), (105, 197212), (140, 147909), (141, 146860), (188, 110145), (210, 98606), (235, 88116), (282, 73430), (329, 62940), (420, 49303), (470, 44058), (564, 36715), (658, 31470), (705, 29372), (940, 22029), (987, 20980), (1049, 19740), (1316, 15735), (1410, 14686), (1645, 12588), (1974, 10490), (2098, 9870), (2820, 7343), (3147, 6580), (3290, 6294), (3948, 5245), (4196, 4935)]