28256872

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 64189440

約数和(自身を除く): 35932568

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 41, 56, 62, 82, 124, 164, 217, 248, 287, 328, 397, 434, 574, 794, 868, 1148, 1271, 1588, 1736, 2296, 2542, 2779, 3176, 5084, 5558, 8897, 10168, 11116, 12307, 16277, 17794, 22232, 24614, 32554, 35588, 49228, 65108, 71176, 86149, 98456, 113939, 130216, 172298, 227878, 344596, 455756, 504587, 689192, 911512, 1009174, 2018348, 3532109, 4036696, 7064218, 14128436, 28256872]

約数ペア:

[(1, 28256872), (2, 14128436), (4, 7064218), (7, 4036696), (8, 3532109), (14, 2018348), (28, 1009174), (31, 911512), (41, 689192), (56, 504587), (62, 455756), (82, 344596), (124, 227878), (164, 172298), (217, 130216), (248, 113939), (287, 98456), (328, 86149), (397, 71176), (434, 65108), (574, 49228), (794, 35588), (868, 32554), (1148, 24614), (1271, 22232), (1588, 17794), (1736, 16277), (2296, 12307), (2542, 11116), (2779, 10168), (3176, 8897), (5084, 5558)]