20580728

素因数分解:

$2^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1619}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 44323200

約数和(自身を除く): 23742472

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 227, 454, 908, 1589, 1619, 1816, 3178, 3238, 6356, 6476, 11333, 12712, 12952, 22666, 45332, 90664, 367513, 735026, 1470052, 2572591, 2940104, 5145182, 10290364, 20580728]

約数ペア:

[(1, 20580728), (2, 10290364), (4, 5145182), (7, 2940104), (8, 2572591), (14, 1470052), (28, 735026), (56, 367513), (227, 90664), (454, 45332), (908, 22666), (1589, 12952), (1619, 12712), (1816, 11333), (3178, 6476), (3238, 6356)]