18692360

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1493}}^1$

素因数の和:1817

約数の個数: 32

約数和(自身を含む): 42220440

約数和(自身を除く): 23528080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1493, 1565, 2504, 2986, 3130, 5972, 6260, 7465, 11944, 12520, 14930, 29860, 59720, 467309, 934618, 1869236, 2336545, 3738472, 4673090, 9346180, 18692360]

約数ペア:

[(1, 18692360), (2, 9346180), (4, 4673090), (5, 3738472), (8, 2336545), (10, 1869236), (20, 934618), (40, 467309), (313, 59720), (626, 29860), (1252, 14930), (1493, 12520), (1565, 11944), (2504, 7465), (2986, 6260), (3130, 5972)]