81306784

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11497}}^1$

素因数の和:11537

約数の個数: 48

約数和(自身を含む): 182542248

約数和(自身を除く): 101235464

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 3536, 7072, 11497, 22994, 45988, 91976, 149461, 183952, 195449, 298922, 367904, 390898, 597844, 781796, 1195688, 1563592, 2391376, 2540837, 3127184, 4782752, 5081674, 6254368, 10163348, 20326696, 40653392, 81306784]

約数ペア:

[(1, 81306784), (2, 40653392), (4, 20326696), (8, 10163348), (13, 6254368), (16, 5081674), (17, 4782752), (26, 3127184), (32, 2540837), (34, 2391376), (52, 1563592), (68, 1195688), (104, 781796), (136, 597844), (208, 390898), (221, 367904), (272, 298922), (416, 195449), (442, 183952), (544, 149461), (884, 91976), (1768, 45988), (3536, 22994), (7072, 11497)]