1640272

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{3307}}^1$

素因数の和:3346

約数の個数: 20

約数和(自身を含む): 3281536

約数和(自身を除く): 1641264

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 3307, 6614, 13228, 26456, 52912, 102517, 205034, 410068, 820136, 1640272]

約数ペア:

[(1, 1640272), (2, 820136), (4, 410068), (8, 205034), (16, 102517), (31, 52912), (62, 26456), (124, 13228), (248, 6614), (496, 3307)]