20724128

素因数分解:

$2^5\times {\mathrm{491}}^1\times {\mathrm{1319}}^1$

素因数の和:1820

約数の個数: 24

約数和(自身を含む): 40914720

約数和(自身を除く): 20190592

約数列:

[1, 2, 4, 8, 16, 32, 491, 982, 1319, 1964, 2638, 3928, 5276, 7856, 10552, 15712, 21104, 42208, 647629, 1295258, 2590516, 5181032, 10362064, 20724128]

約数ペア:

[(1, 20724128), (2, 10362064), (4, 5181032), (8, 2590516), (16, 1295258), (32, 647629), (491, 42208), (982, 21104), (1319, 15712), (1964, 10552), (2638, 7856), (3928, 5276)]