80206120

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19853}}^1$

素因数の和:19965

約数の個数: 32

約数和(自身を含む): 182259720

約数和(自身を除く): 102053600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 19853, 39706, 79412, 99265, 158824, 198530, 397060, 794120, 2005153, 4010306, 8020612, 10025765, 16041224, 20051530, 40103060, 80206120]

約数ペア:

[(1, 80206120), (2, 40103060), (4, 20051530), (5, 16041224), (8, 10025765), (10, 8020612), (20, 4010306), (40, 2005153), (101, 794120), (202, 397060), (404, 198530), (505, 158824), (808, 99265), (1010, 79412), (2020, 39706), (4040, 19853)]