28206100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1669}}^1$

素因数の和:1709

約数の個数: 54

約数和(自身を含む): 66317370

約数和(自身を除く): 38111270

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 1300, 1669, 1690, 3338, 3380, 4225, 6676, 8345, 8450, 16690, 16900, 21697, 33380, 41725, 43394, 83450, 86788, 108485, 166900, 216970, 282061, 433940, 542425, 564122, 1084850, 1128244, 1410305, 2169700, 2820610, 5641220, 7051525, 14103050, 28206100]

約数ペア:

[(1, 28206100), (2, 14103050), (4, 7051525), (5, 5641220), (10, 2820610), (13, 2169700), (20, 1410305), (25, 1128244), (26, 1084850), (50, 564122), (52, 542425), (65, 433940), (100, 282061), (130, 216970), (169, 166900), (260, 108485), (325, 86788), (338, 83450), (650, 43394), (676, 41725), (845, 33380), (1300, 21697), (1669, 16900), (1690, 16690), (3338, 8450), (3380, 8345), (4225, 6676)]