7981540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1213}}^1$

素因数の和:1276

約数の個数: 48

約数和(自身を含む): 19579392

約数和(自身を除く): 11597852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1213, 1316, 1645, 2426, 3290, 4852, 6065, 6580, 8491, 12130, 16982, 24260, 33964, 42455, 57011, 84910, 114022, 169820, 228044, 285055, 399077, 570110, 798154, 1140220, 1596308, 1995385, 3990770, 7981540]

約数ペア:

[(1, 7981540), (2, 3990770), (4, 1995385), (5, 1596308), (7, 1140220), (10, 798154), (14, 570110), (20, 399077), (28, 285055), (35, 228044), (47, 169820), (70, 114022), (94, 84910), (140, 57011), (188, 42455), (235, 33964), (329, 24260), (470, 16982), (658, 12130), (940, 8491), (1213, 6580), (1316, 6065), (1645, 4852), (2426, 3290)]