81353504

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{587}}^1$

素因数の和:729

約数の個数: 48

約数和(自身を含む): 165364416

約数和(自身を除く): 84010912

約数列:

[1, 2, 4, 8, 16, 32, 61, 71, 122, 142, 244, 284, 488, 568, 587, 976, 1136, 1174, 1952, 2272, 2348, 4331, 4696, 8662, 9392, 17324, 18784, 34648, 35807, 41677, 69296, 71614, 83354, 138592, 143228, 166708, 286456, 333416, 572912, 666832, 1145824, 1333664, 2542297, 5084594, 10169188, 20338376, 40676752, 81353504]

約数ペア:

[(1, 81353504), (2, 40676752), (4, 20338376), (8, 10169188), (16, 5084594), (32, 2542297), (61, 1333664), (71, 1145824), (122, 666832), (142, 572912), (244, 333416), (284, 286456), (488, 166708), (568, 143228), (587, 138592), (976, 83354), (1136, 71614), (1174, 69296), (1952, 41677), (2272, 35807), (2348, 34648), (4331, 18784), (4696, 17324), (8662, 9392)]