18019949752

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{65899}}^1$

素因数の和:66188

約数の個数: 64

約数和(自身を含む): 40805280000

約数和(自身を除く): 22785330248

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 257, 266, 514, 532, 1028, 1064, 1799, 2056, 3598, 4883, 7196, 9766, 14392, 19532, 34181, 39064, 65899, 68362, 131798, 136724, 263596, 273448, 461293, 527192, 922586, 1252081, 1845172, 2504162, 3690344, 5008324, 8764567, 10016648, 16936043, 17529134, 33872086, 35058268, 67744172, 70116536, 118552301, 135488344, 237104602, 321784817, 474209204, 643569634, 948418408, 1287139268, 2252493719, 2574278536, 4504987438, 9009974876, 18019949752]

約数ペア:

[(1, 18019949752), (2, 9009974876), (4, 4504987438), (7, 2574278536), (8, 2252493719), (14, 1287139268), (19, 948418408), (28, 643569634), (38, 474209204), (56, 321784817), (76, 237104602), (133, 135488344), (152, 118552301), (257, 70116536), (266, 67744172), (514, 35058268), (532, 33872086), (1028, 17529134), (1064, 16936043), (1799, 10016648), (2056, 8764567), (3598, 5008324), (4883, 3690344), (7196, 2504162), (9766, 1845172), (14392, 1252081), (19532, 922586), (34181, 527192), (39064, 461293), (65899, 273448), (68362, 263596), (131798, 136724)]