16280840

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2131}}^1$

素因数の和:2333

約数の個数: 32

約数和(自身を含む): 36840960

約数和(自身を除く): 20560120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2131, 3820, 4262, 7640, 8524, 10655, 17048, 21310, 42620, 85240, 407021, 814042, 1628084, 2035105, 3256168, 4070210, 8140420, 16280840]

約数ペア:

[(1, 16280840), (2, 8140420), (4, 4070210), (5, 3256168), (8, 2035105), (10, 1628084), (20, 814042), (40, 407021), (191, 85240), (382, 42620), (764, 21310), (955, 17048), (1528, 10655), (1910, 8524), (2131, 7640), (3820, 4262)]