15880840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4093}}^1$

素因数の和:4201

約数の個数: 32

約数和(自身を含む): 36109080

約数和(自身を除く): 20228240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4093, 8186, 16372, 20465, 32744, 40930, 81860, 163720, 397021, 794042, 1588084, 1985105, 3176168, 3970210, 7940420, 15880840]

約数ペア:

[(1, 15880840), (2, 7940420), (4, 3970210), (5, 3176168), (8, 1985105), (10, 1588084), (20, 794042), (40, 397021), (97, 163720), (194, 81860), (388, 40930), (485, 32744), (776, 20465), (970, 16372), (1940, 8186), (3880, 4093)]