128105900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{98543}}^1$

素因数の和:98570

約数の個数: 36

約数和(自身を含む): 299376672

約数和(自身を除く): 171270772

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 98543, 197086, 394172, 492715, 985430, 1281059, 1970860, 2463575, 2562118, 4927150, 5124236, 6405295, 9854300, 12810590, 25621180, 32026475, 64052950, 128105900]

約数ペア:

[(1, 128105900), (2, 64052950), (4, 32026475), (5, 25621180), (10, 12810590), (13, 9854300), (20, 6405295), (25, 5124236), (26, 4927150), (50, 2562118), (52, 2463575), (65, 1970860), (100, 1281059), (130, 985430), (260, 492715), (325, 394172), (650, 197086), (1300, 98543)]