215545918

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 401863680

約数和(自身を除く): 186317762

約数列:

[1, 2, 7, 14, 19, 38, 71, 101, 113, 133, 142, 202, 226, 266, 497, 707, 791, 994, 1349, 1414, 1582, 1919, 2147, 2698, 3838, 4294, 7171, 8023, 9443, 11413, 13433, 14342, 15029, 16046, 18886, 22826, 26866, 30058, 50197, 56161, 79891, 100394, 112322, 136249, 152437, 159782, 216847, 272498, 304874, 433694, 810323, 953743, 1067059, 1517929, 1620646, 1907486, 2134118, 3035858, 5672261, 11344522, 15396137, 30792274, 107772959, 215545918]

約数ペア:

[(1, 215545918), (2, 107772959), (7, 30792274), (14, 15396137), (19, 11344522), (38, 5672261), (71, 3035858), (101, 2134118), (113, 1907486), (133, 1620646), (142, 1517929), (202, 1067059), (226, 953743), (266, 810323), (497, 433694), (707, 304874), (791, 272498), (994, 216847), (1349, 159782), (1414, 152437), (1582, 136249), (1919, 112322), (2147, 100394), (2698, 79891), (3838, 56161), (4294, 50197), (7171, 30058), (8023, 26866), (9443, 22826), (11413, 18886), (13433, 16046), (14342, 15029)]