81261915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{26687}}^1$

素因数の和:26731

約数の個数: 32

約数和(自身を含む): 153722880

約数和(自身を除く): 72460965

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 26687, 80061, 133435, 186809, 400305, 560427, 773923, 934045, 2321769, 2802135, 3869615, 5417461, 11608845, 16252383, 27087305, 81261915]

約数ペア:

[(1, 81261915), (3, 27087305), (5, 16252383), (7, 11608845), (15, 5417461), (21, 3869615), (29, 2802135), (35, 2321769), (87, 934045), (105, 773923), (145, 560427), (203, 400305), (435, 186809), (609, 133435), (1015, 80061), (3045, 26687)]