161729900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{85121}}^1$

素因数の和:85154

約数の個数: 36

約数和(自身を含む): 369429480

約数和(自身を除く): 207699580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 85121, 170242, 340484, 425605, 851210, 1617299, 1702420, 2128025, 3234598, 4256050, 6469196, 8086495, 8512100, 16172990, 32345980, 40432475, 80864950, 161729900]

約数ペア:

[(1, 161729900), (2, 80864950), (4, 40432475), (5, 32345980), (10, 16172990), (19, 8512100), (20, 8086495), (25, 6469196), (38, 4256050), (50, 3234598), (76, 2128025), (95, 1702420), (100, 1617299), (190, 851210), (380, 425605), (475, 340484), (950, 170242), (1900, 85121)]