173880016

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{401}}^1\times {\mathrm{661}}^1$

素因数の和:1111

約数の個数: 40

約数和(自身を含む): 346493448

約数和(自身を除く): 172613432

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 401, 656, 661, 802, 1322, 1604, 2644, 3208, 5288, 6416, 10576, 16441, 27101, 32882, 54202, 65764, 108404, 131528, 216808, 263056, 265061, 433616, 530122, 1060244, 2120488, 4240976, 10867501, 21735002, 43470004, 86940008, 173880016]

約数ペア:

[(1, 173880016), (2, 86940008), (4, 43470004), (8, 21735002), (16, 10867501), (41, 4240976), (82, 2120488), (164, 1060244), (328, 530122), (401, 433616), (656, 265061), (661, 263056), (802, 216808), (1322, 131528), (1604, 108404), (2644, 65764), (3208, 54202), (5288, 32882), (6416, 27101), (10576, 16441)]