18287788688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{421}}^1\times {\mathrm{2153}}^1$

素因数の和:2692

約数の個数: 80

約数和(自身を含む): 38661077616

約数和(自身を除く): 20373288928

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 104, 194, 208, 388, 421, 776, 842, 1261, 1552, 1684, 2153, 2522, 3368, 4306, 5044, 5473, 6736, 8612, 10088, 10946, 17224, 20176, 21892, 27989, 34448, 40837, 43784, 55978, 81674, 87568, 111956, 163348, 208841, 223912, 326696, 417682, 447824, 530881, 653392, 835364, 906413, 1061762, 1670728, 1812826, 2123524, 2714933, 3341456, 3625652, 4247048, 5429866, 7251304, 8494096, 10859732, 11783369, 14502608, 21719464, 23566738, 43438928, 47133476, 87922061, 94266952, 175844122, 188533904, 351688244, 703376488, 1142986793, 1406752976, 2285973586, 4571947172, 9143894344, 18287788688]

約数ペア:

[(1, 18287788688), (2, 9143894344), (4, 4571947172), (8, 2285973586), (13, 1406752976), (16, 1142986793), (26, 703376488), (52, 351688244), (97, 188533904), (104, 175844122), (194, 94266952), (208, 87922061), (388, 47133476), (421, 43438928), (776, 23566738), (842, 21719464), (1261, 14502608), (1552, 11783369), (1684, 10859732), (2153, 8494096), (2522, 7251304), (3368, 5429866), (4306, 4247048), (5044, 3625652), (5473, 3341456), (6736, 2714933), (8612, 2123524), (10088, 1812826), (10946, 1670728), (17224, 1061762), (20176, 906413), (21892, 835364), (27989, 653392), (34448, 530881), (40837, 447824), (43784, 417682), (55978, 326696), (81674, 223912), (87568, 208841), (111956, 163348)]