40979920

素因数分解:

$2^4\times 5^1\times {\mathrm{512249}}^1$

素因数の和:512262

約数の個数: 20

約数和(自身を含む): 95278500

約数和(自身を除く): 54298580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 512249, 1024498, 2048996, 2561245, 4097992, 5122490, 8195984, 10244980, 20489960, 40979920]

約数ペア:

[(1, 40979920), (2, 20489960), (4, 10244980), (5, 8195984), (8, 5122490), (10, 4097992), (16, 2561245), (20, 2048996), (40, 1024498), (80, 512249)]