16649680

素因数分解:

$2^4\times 5^1\times {\mathrm{208121}}^1$

素因数の和:208134

約数の個数: 20

約数和(自身を含む): 38710692

約数和(自身を除く): 22061012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 208121, 416242, 832484, 1040605, 1664968, 2081210, 3329936, 4162420, 8324840, 16649680]

約数ペア:

[(1, 16649680), (2, 8324840), (4, 4162420), (5, 3329936), (8, 2081210), (10, 1664968), (16, 1040605), (20, 832484), (40, 416242), (80, 208121)]