249739412

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{571}}^1\times {\mathrm{647}}^1$

素因数の和:1248

約数の個数: 36

約数和(自身を含む): 474810336

約数和(自身を除く): 225070924

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 571, 647, 676, 1142, 1294, 2284, 2588, 7423, 8411, 14846, 16822, 29692, 33644, 96499, 109343, 192998, 218686, 369437, 385996, 437372, 738874, 1477748, 4802681, 9605362, 19210724, 62434853, 124869706, 249739412]

約数ペア:

[(1, 249739412), (2, 124869706), (4, 62434853), (13, 19210724), (26, 9605362), (52, 4802681), (169, 1477748), (338, 738874), (571, 437372), (647, 385996), (676, 369437), (1142, 218686), (1294, 192998), (2284, 109343), (2588, 96499), (7423, 33644), (8411, 29692), (14846, 16822)]