54390520

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{13463}}^1$

素因数の和:13575

約数の個数: 32

約数和(自身を含む): 123599520

約数和(自身を除く): 69209000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 13463, 26926, 53852, 67315, 107704, 134630, 269260, 538520, 1359763, 2719526, 5439052, 6798815, 10878104, 13597630, 27195260, 54390520]

約数ペア:

[(1, 54390520), (2, 27195260), (4, 13597630), (5, 10878104), (8, 6798815), (10, 5439052), (20, 2719526), (40, 1359763), (101, 538520), (202, 269260), (404, 134630), (505, 107704), (808, 67315), (1010, 53852), (2020, 26926), (4040, 13463)]