20540286

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1439}}^1$

素因数の和:1521

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 28206594

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 61, 78, 117, 122, 183, 234, 366, 549, 793, 1098, 1439, 1586, 2379, 2878, 4317, 4758, 7137, 8634, 12951, 14274, 18707, 25902, 37414, 56121, 87779, 112242, 168363, 175558, 263337, 336726, 526674, 790011, 1141127, 1580022, 2282254, 3423381, 6846762, 10270143, 20540286]

約数ペア:

[(1, 20540286), (2, 10270143), (3, 6846762), (6, 3423381), (9, 2282254), (13, 1580022), (18, 1141127), (26, 790011), (39, 526674), (61, 336726), (78, 263337), (117, 175558), (122, 168363), (183, 112242), (234, 87779), (366, 56121), (549, 37414), (793, 25902), (1098, 18707), (1439, 14274), (1586, 12951), (2379, 8634), (2878, 7137), (4317, 4758)]