81493568

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2389}}^1$

素因数の和:2455

約数の個数: 56

約数和(自身を含む): 178475640

約数和(自身を除く): 96982072

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 164, 208, 328, 416, 533, 656, 832, 1066, 1312, 2132, 2389, 2624, 4264, 4778, 8528, 9556, 17056, 19112, 31057, 34112, 38224, 62114, 76448, 97949, 124228, 152896, 195898, 248456, 391796, 496912, 783592, 993824, 1273337, 1567184, 1987648, 2546674, 3134368, 5093348, 6268736, 10186696, 20373392, 40746784, 81493568]

約数ペア:

[(1, 81493568), (2, 40746784), (4, 20373392), (8, 10186696), (13, 6268736), (16, 5093348), (26, 3134368), (32, 2546674), (41, 1987648), (52, 1567184), (64, 1273337), (82, 993824), (104, 783592), (164, 496912), (208, 391796), (328, 248456), (416, 195898), (533, 152896), (656, 124228), (832, 97949), (1066, 76448), (1312, 62114), (2132, 38224), (2389, 34112), (2624, 31057), (4264, 19112), (4778, 17056), (8528, 9556)]