398460440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1423073}}^1$

素因数の和:1423091

約数の個数: 32

約数和(自身を含む): 1024613280

約数和(自身を除く): 626152840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1423073, 2846146, 5692292, 7115365, 9961511, 11384584, 14230730, 19923022, 28461460, 39846044, 49807555, 56922920, 79692088, 99615110, 199230220, 398460440]

約数ペア:

[(1, 398460440), (2, 199230220), (4, 99615110), (5, 79692088), (7, 56922920), (8, 49807555), (10, 39846044), (14, 28461460), (20, 19923022), (28, 14230730), (35, 11384584), (40, 9961511), (56, 7115365), (70, 5692292), (140, 2846146), (280, 1423073)]