256882864

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{307}}^1$

素因数の和:594

約数の個数: 80

約数和(自身を含む): 591517696

約数和(自身を除く): 334634832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 241, 248, 307, 434, 482, 496, 614, 868, 964, 1228, 1687, 1736, 1928, 2149, 2456, 3374, 3472, 3856, 4298, 4912, 6748, 7471, 8596, 9517, 13496, 14942, 17192, 19034, 26992, 29884, 34384, 38068, 52297, 59768, 66619, 73987, 76136, 104594, 119536, 133238, 147974, 152272, 209188, 266476, 295948, 418376, 517909, 532952, 591896, 836752, 1035818, 1065904, 1183792, 2071636, 2293597, 4143272, 4587194, 8286544, 9174388, 16055179, 18348776, 32110358, 36697552, 64220716, 128441432, 256882864]

約数ペア:

[(1, 256882864), (2, 128441432), (4, 64220716), (7, 36697552), (8, 32110358), (14, 18348776), (16, 16055179), (28, 9174388), (31, 8286544), (56, 4587194), (62, 4143272), (112, 2293597), (124, 2071636), (217, 1183792), (241, 1065904), (248, 1035818), (307, 836752), (434, 591896), (482, 532952), (496, 517909), (614, 418376), (868, 295948), (964, 266476), (1228, 209188), (1687, 152272), (1736, 147974), (1928, 133238), (2149, 119536), (2456, 104594), (3374, 76136), (3472, 73987), (3856, 66619), (4298, 59768), (4912, 52297), (6748, 38068), (7471, 34384), (8596, 29884), (9517, 26992), (13496, 19034), (14942, 17192)]