19787247872

素因数分解:

$2^8\times 7^1\times {\mathrm{71}}^1\times {\mathrm{155521}}^1$

素因数の和:155615

約数の個数: 72

約数和(自身を含む): 45775723392

約数和(自身を除く): 25988475520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 224, 256, 284, 448, 497, 568, 896, 994, 1136, 1792, 1988, 2272, 3976, 4544, 7952, 9088, 15904, 18176, 31808, 63616, 127232, 155521, 311042, 622084, 1088647, 1244168, 2177294, 2488336, 4354588, 4976672, 8709176, 9953344, 11041991, 17418352, 19906688, 22083982, 34836704, 39813376, 44167964, 69673408, 77293937, 88335928, 139346816, 154587874, 176671856, 278693632, 309175748, 353343712, 618351496, 706687424, 1236702992, 1413374848, 2473405984, 2826749696, 4946811968, 9893623936, 19787247872]

約数ペア:

[(1, 19787247872), (2, 9893623936), (4, 4946811968), (7, 2826749696), (8, 2473405984), (14, 1413374848), (16, 1236702992), (28, 706687424), (32, 618351496), (56, 353343712), (64, 309175748), (71, 278693632), (112, 176671856), (128, 154587874), (142, 139346816), (224, 88335928), (256, 77293937), (284, 69673408), (448, 44167964), (497, 39813376), (568, 34836704), (896, 22083982), (994, 19906688), (1136, 17418352), (1792, 11041991), (1988, 9953344), (2272, 8709176), (3976, 4976672), (4544, 4354588), (7952, 2488336), (9088, 2177294), (15904, 1244168), (18176, 1088647), (31808, 622084), (63616, 311042), (127232, 155521)]