28927256176

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{640891}}^1$

素因数の和:640950

約数の個数: 80

約数和(自身を含む): 71205664768

約数和(自身を除く): 42278408592

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 496, 728, 806, 868, 1456, 1612, 1736, 2821, 3224, 3472, 5642, 6448, 11284, 22568, 45136, 640891, 1281782, 2563564, 4486237, 5127128, 8331583, 8972474, 10254256, 16663166, 17944948, 19867621, 33326332, 35889896, 39735242, 58321081, 66652664, 71779792, 79470484, 116642162, 133305328, 139073347, 158940968, 233284324, 258279073, 278146694, 317881936, 466568648, 516558146, 556293388, 933137296, 1033116292, 1112586776, 1807953511, 2066232584, 2225173552, 3615907022, 4132465168, 7231814044, 14463628088, 28927256176]

約数ペア:

[(1, 28927256176), (2, 14463628088), (4, 7231814044), (7, 4132465168), (8, 3615907022), (13, 2225173552), (14, 2066232584), (16, 1807953511), (26, 1112586776), (28, 1033116292), (31, 933137296), (52, 556293388), (56, 516558146), (62, 466568648), (91, 317881936), (104, 278146694), (112, 258279073), (124, 233284324), (182, 158940968), (208, 139073347), (217, 133305328), (248, 116642162), (364, 79470484), (403, 71779792), (434, 66652664), (496, 58321081), (728, 39735242), (806, 35889896), (868, 33326332), (1456, 19867621), (1612, 17944948), (1736, 16663166), (2821, 10254256), (3224, 8972474), (3472, 8331583), (5642, 5127128), (6448, 4486237), (11284, 2563564), (22568, 1281782), (45136, 640891)]