2798900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2153}}^1$

素因数の和:2180

約数の個数: 36

約数和(自身を含む): 6543852

約数和(自身を除く): 3744952

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 2153, 4306, 8612, 10765, 21530, 27989, 43060, 53825, 55978, 107650, 111956, 139945, 215300, 279890, 559780, 699725, 1399450, 2798900]

約数ペア:

[(1, 2798900), (2, 1399450), (4, 699725), (5, 559780), (10, 279890), (13, 215300), (20, 139945), (25, 111956), (26, 107650), (50, 55978), (52, 53825), (65, 43060), (100, 27989), (130, 21530), (260, 10765), (325, 8612), (650, 4306), (1300, 2153)]