208003480

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{7867}}^1$

素因数の和:8539

約数の個数: 32

約数和(自身を含む): 468775440

約数和(自身を除く): 260771960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 7867, 13220, 15734, 26440, 31468, 39335, 62936, 78670, 157340, 314680, 5200087, 10400174, 20800348, 26000435, 41600696, 52000870, 104001740, 208003480]

約数ペア:

[(1, 208003480), (2, 104001740), (4, 52000870), (5, 41600696), (8, 26000435), (10, 20800348), (20, 10400174), (40, 5200087), (661, 314680), (1322, 157340), (2644, 78670), (3305, 62936), (5288, 39335), (6610, 31468), (7867, 26440), (13220, 15734)]