81552555

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:641

約数の個数: 64

約数和(自身を含む): 166886400

約数和(自身を除く): 85333845

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 211, 315, 409, 633, 945, 1055, 1227, 1477, 1899, 2045, 2863, 3165, 3681, 4431, 5697, 6135, 7385, 8589, 9495, 11043, 13293, 14315, 18405, 22155, 25767, 28485, 39879, 42945, 55215, 66465, 77301, 86299, 128835, 199395, 258897, 386505, 431495, 604093, 776691, 1294485, 1812279, 2330073, 3020465, 3883455, 5436837, 9061395, 11650365, 16310511, 27184185, 81552555]

約数ペア:

[(1, 81552555), (3, 27184185), (5, 16310511), (7, 11650365), (9, 9061395), (15, 5436837), (21, 3883455), (27, 3020465), (35, 2330073), (45, 1812279), (63, 1294485), (105, 776691), (135, 604093), (189, 431495), (211, 386505), (315, 258897), (409, 199395), (633, 128835), (945, 86299), (1055, 77301), (1227, 66465), (1477, 55215), (1899, 42945), (2045, 39879), (2863, 28485), (3165, 25767), (3681, 22155), (4431, 18405), (5697, 14315), (6135, 13293), (7385, 11043), (8589, 9495)]