80172944

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{161639}}^1$

素因数の和:161678

約数の個数: 20

約数和(自身を含む): 160346880

約数和(自身を除く): 80173936

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 161639, 323278, 646556, 1293112, 2586224, 5010809, 10021618, 20043236, 40086472, 80172944]

約数ペア:

[(1, 80172944), (2, 40086472), (4, 20043236), (8, 10021618), (16, 5010809), (31, 2586224), (62, 1293112), (124, 646556), (248, 323278), (496, 161639)]