79704400

素因数分解:

$2^4\times 5^2\times {\mathrm{199261}}^1$

素因数の和:199279

約数の個数: 30

約数和(自身を含む): 191490782

約数和(自身を除く): 111786382

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 199261, 398522, 797044, 996305, 1594088, 1992610, 3188176, 3985220, 4981525, 7970440, 9963050, 15940880, 19926100, 39852200, 79704400]

約数ペア:

[(1, 79704400), (2, 39852200), (4, 19926100), (5, 15940880), (8, 9963050), (10, 7970440), (16, 4981525), (20, 3985220), (25, 3188176), (40, 1992610), (50, 1594088), (80, 996305), (100, 797044), (200, 398522), (400, 199261)]