80869816.000000000

素因数分解:

$2^5\times 3^2\times {\mathrm{409}}^1\times {\mathrm{1237}}^1$

素因数の和:1662

約数の個数: 72

約数和(自身を含む): 415708020

約数和(自身を除く): 269999316

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 409, 818, 1227, 1237, 1636, 2454, 2474, 3272, 3681, 3711, 4908, 4948, 6544, 7362, 7422, 9816, 9896, 11133, 13088, 14724, 14844, 19632, 19792, 22266, 29448, 29688, 39264, 39584, 44532, 58896, 59376, 89064, 117792, 118752, 178128, 356256, 505933, 1011866, 1517799, 2023732, 3035598, 4047464, 4553397, 6071196, 8094928, 9106794, 12142392, 16189856, 18213588, 24284784, 36427176, 48569568, 72854352, 145708704]

約数ペア:

[(1, 145708704), (2, 72854352), (3, 48569568), (4, 36427176), (6, 24284784), (8, 18213588), (9, 16189856), (12, 12142392), (16, 9106794), (18, 8094928), (24, 6071196), (32, 4553397), (36, 4047464), (48, 3035598), (72, 2023732), (96, 1517799), (144, 1011866), (288, 505933), (409, 356256), (818, 178128), (1227, 118752), (1237, 117792), (1636, 89064), (2454, 59376), (2474, 58896), (3272, 44532), (3681, 39584), (3711, 39264), (4908, 29688), (4948, 29448), (6544, 22266), (7362, 19792), (7422, 19632), (9816, 14844), (9896, 14724), (11133, 13088)]