15985172

素因数分解:

$2^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 33331200

約数和(自身を除く): 17346028

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 191, 196, 244, 343, 382, 427, 686, 764, 854, 1337, 1372, 1708, 2674, 2989, 5348, 5978, 9359, 11651, 11956, 18718, 20923, 23302, 37436, 41846, 46604, 65513, 81557, 83692, 131026, 163114, 262052, 326228, 570899, 1141798, 2283596, 3996293, 7992586, 15985172]

約数ペア:

[(1, 15985172), (2, 7992586), (4, 3996293), (7, 2283596), (14, 1141798), (28, 570899), (49, 326228), (61, 262052), (98, 163114), (122, 131026), (191, 83692), (196, 81557), (244, 65513), (343, 46604), (382, 41846), (427, 37436), (686, 23302), (764, 20923), (854, 18718), (1337, 11956), (1372, 11651), (1708, 9359), (2674, 5978), (2989, 5348)]