81565484

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1567}}^1$

素因数の和:1615

約数の個数: 72

約数和(自身を含む): 192826368

約数和(自身を除く): 111260884

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 169, 182, 286, 308, 338, 364, 572, 676, 1001, 1183, 1567, 1859, 2002, 2366, 3134, 3718, 4004, 4732, 6268, 7436, 10969, 13013, 17237, 20371, 21938, 26026, 34474, 40742, 43876, 52052, 68948, 81484, 120659, 142597, 224081, 241318, 264823, 285194, 448162, 482636, 529646, 570388, 896324, 1059292, 1568567, 1853761, 2913053, 3137134, 3707522, 5826106, 6274268, 7415044, 11652212, 20391371, 40782742, 81565484]

約数ペア:

[(1, 81565484), (2, 40782742), (4, 20391371), (7, 11652212), (11, 7415044), (13, 6274268), (14, 5826106), (22, 3707522), (26, 3137134), (28, 2913053), (44, 1853761), (52, 1568567), (77, 1059292), (91, 896324), (143, 570388), (154, 529646), (169, 482636), (182, 448162), (286, 285194), (308, 264823), (338, 241318), (364, 224081), (572, 142597), (676, 120659), (1001, 81484), (1183, 68948), (1567, 52052), (1859, 43876), (2002, 40742), (2366, 34474), (3134, 26026), (3718, 21938), (4004, 20371), (4732, 17237), (6268, 13013), (7436, 10969)]