81715878

素因数分解:

$2^1\times 3^4\times {\mathrm{509}}^1\times {\mathrm{991}}^1$

素因数の和:1514

約数の個数: 40

約数和(自身を含む): 183648960

約数和(自身を除く): 101933082

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 509, 991, 1018, 1527, 1982, 2973, 3054, 4581, 5946, 8919, 9162, 13743, 17838, 26757, 27486, 41229, 53514, 80271, 82458, 160542, 504419, 1008838, 1513257, 3026514, 4539771, 9079542, 13619313, 27238626, 40857939, 81715878]

約数ペア:

[(1, 81715878), (2, 40857939), (3, 27238626), (6, 13619313), (9, 9079542), (18, 4539771), (27, 3026514), (54, 1513257), (81, 1008838), (162, 504419), (509, 160542), (991, 82458), (1018, 80271), (1527, 53514), (1982, 41229), (2973, 27486), (3054, 26757), (4581, 17838), (5946, 13743), (8919, 9162)]