78740865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{249971}}^1$

素因数の和:249989

約数の個数: 24

約数和(自身を含む): 155982528

約数和(自身を除く): 77241663

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 249971, 749913, 1249855, 1749797, 2249739, 3749565, 5249391, 8748985, 11248695, 15748173, 26246955, 78740865]

約数ペア:

[(1, 78740865), (3, 26246955), (5, 15748173), (7, 11248695), (9, 8748985), (15, 5249391), (21, 3749565), (35, 2249739), (45, 1749797), (63, 1249855), (105, 749913), (315, 249971)]