81438208

素因数分解:

$2^9\times {\mathrm{159059}}^1$

素因数の和:159077

約数の個数: 20

約数和(自身を含む): 162718380

約数和(自身を除く): 81280172

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 159059, 318118, 636236, 1272472, 2544944, 5089888, 10179776, 20359552, 40719104, 81438208]

約数ペア:

[(1, 81438208), (2, 40719104), (4, 20359552), (8, 10179776), (16, 5089888), (32, 2544944), (64, 1272472), (128, 636236), (256, 318118), (512, 159059)]