128063728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19861}}^1$

素因数の和:19913

約数の個数: 40

約数和(自身を含む): 275843456

約数和(自身を除く): 147779728

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 19861, 39722, 79444, 158888, 258193, 317776, 516386, 615691, 1032772, 1231382, 2065544, 2462764, 4131088, 4925528, 8003983, 9851056, 16007966, 32015932, 64031864, 128063728]

約数ペア:

[(1, 128063728), (2, 64031864), (4, 32015932), (8, 16007966), (13, 9851056), (16, 8003983), (26, 4925528), (31, 4131088), (52, 2462764), (62, 2065544), (104, 1231382), (124, 1032772), (208, 615691), (248, 516386), (403, 317776), (496, 258193), (806, 158888), (1612, 79444), (3224, 39722), (6448, 19861)]