20337128

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4597}}^1$

素因数の和:4689

約数の個数: 32

約数和(自身を含む): 44140800

約数和(自身を除く): 23803672

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 553, 632, 1106, 2212, 4424, 4597, 9194, 18388, 32179, 36776, 64358, 128716, 257432, 363163, 726326, 1452652, 2542141, 2905304, 5084282, 10168564, 20337128]

約数ペア:

[(1, 20337128), (2, 10168564), (4, 5084282), (7, 2905304), (8, 2542141), (14, 1452652), (28, 726326), (56, 363163), (79, 257432), (158, 128716), (316, 64358), (553, 36776), (632, 32179), (1106, 18388), (2212, 9194), (4424, 4597)]