1640372995

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{200903}}^1$

素因数の和:201002

約数の個数: 16

約数和(自身を含む): 2082972672

約数和(自身を除く): 442599677

約数列:

[1, 5, 23, 71, 115, 355, 1633, 8165, 200903, 1004515, 4620769, 14264113, 23103845, 71320565, 328074599, 1640372995]

約数ペア:

[(1, 1640372995), (5, 328074599), (23, 71320565), (71, 23103845), (115, 14264113), (355, 4620769), (1633, 1004515), (8165, 200903)]