388624400

素因数分解:

$2^4\times 5^2\times {\mathrm{971561}}^1$

素因数の和:971579

約数の個数: 30

約数和(自身を含む): 933671082

約数和(自身を除く): 545046682

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 971561, 1943122, 3886244, 4857805, 7772488, 9715610, 15544976, 19431220, 24289025, 38862440, 48578050, 77724880, 97156100, 194312200, 388624400]

約数ペア:

[(1, 388624400), (2, 194312200), (4, 97156100), (5, 77724880), (8, 48578050), (10, 38862440), (16, 24289025), (20, 19431220), (25, 15544976), (40, 9715610), (50, 7772488), (80, 4857805), (100, 3886244), (200, 1943122), (400, 971561)]