20697180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49279}}^1$

素因数の和:49298

約数の個数: 48

約数和(自身を含む): 66232320

約数和(自身を除く): 45535140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49279, 98558, 147837, 197116, 246395, 295674, 344953, 492790, 591348, 689906, 739185, 985580, 1034859, 1379812, 1478370, 1724765, 2069718, 2956740, 3449530, 4139436, 5174295, 6899060, 10348590, 20697180]

約数ペア:

[(1, 20697180), (2, 10348590), (3, 6899060), (4, 5174295), (5, 4139436), (6, 3449530), (7, 2956740), (10, 2069718), (12, 1724765), (14, 1478370), (15, 1379812), (20, 1034859), (21, 985580), (28, 739185), (30, 689906), (35, 591348), (42, 492790), (60, 344953), (70, 295674), (84, 246395), (105, 197116), (140, 147837), (210, 98558), (420, 49279)]