81873232

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23581}}^1$

素因数の和:23627

約数の個数: 40

約数和(自身を含む): 187146752

約数和(自身を除く): 105273520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 23581, 47162, 94324, 165067, 188648, 330134, 377296, 660268, 731011, 1320536, 1462022, 2641072, 2924044, 5117077, 5848088, 10234154, 11696176, 20468308, 40936616, 81873232]

約数ペア:

[(1, 81873232), (2, 40936616), (4, 20468308), (7, 11696176), (8, 10234154), (14, 5848088), (16, 5117077), (28, 2924044), (31, 2641072), (56, 1462022), (62, 1320536), (112, 731011), (124, 660268), (217, 377296), (248, 330134), (434, 188648), (496, 165067), (868, 94324), (1736, 47162), (3472, 23581)]