20756450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2903}}^1$

素因数の和:2939

約数の個数: 48

約数和(自身を含む): 45372096

約数和(自身を除く): 24615646

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 275, 286, 325, 550, 650, 715, 1430, 2903, 3575, 5806, 7150, 14515, 29030, 31933, 37739, 63866, 72575, 75478, 145150, 159665, 188695, 319330, 377390, 415129, 798325, 830258, 943475, 1596650, 1886950, 2075645, 4151290, 10378225, 20756450]

約数ペア:

[(1, 20756450), (2, 10378225), (5, 4151290), (10, 2075645), (11, 1886950), (13, 1596650), (22, 943475), (25, 830258), (26, 798325), (50, 415129), (55, 377390), (65, 319330), (110, 188695), (130, 159665), (143, 145150), (275, 75478), (286, 72575), (325, 63866), (550, 37739), (650, 31933), (715, 29030), (1430, 14515), (2903, 7150), (3575, 5806)]