16928440

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4363}}^1$

素因数の和:4471

約数の個数: 32

約数和(自身を含む): 38490480

約数和(自身を除く): 21562040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4363, 8726, 17452, 21815, 34904, 43630, 87260, 174520, 423211, 846422, 1692844, 2116055, 3385688, 4232110, 8464220, 16928440]

約数ペア:

[(1, 16928440), (2, 8464220), (4, 4232110), (5, 3385688), (8, 2116055), (10, 1692844), (20, 846422), (40, 423211), (97, 174520), (194, 87260), (388, 43630), (485, 34904), (776, 21815), (970, 17452), (1940, 8726), (3880, 4363)]