2161900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1663}}^1$

素因数の和:1690

約数の個数: 36

約数和(自身を含む): 5055232

約数和(自身を除く): 2893332

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 1663, 3326, 6652, 8315, 16630, 21619, 33260, 41575, 43238, 83150, 86476, 108095, 166300, 216190, 432380, 540475, 1080950, 2161900]

約数ペア:

[(1, 2161900), (2, 1080950), (4, 540475), (5, 432380), (10, 216190), (13, 166300), (20, 108095), (25, 86476), (26, 83150), (50, 43238), (52, 41575), (65, 33260), (100, 21619), (130, 16630), (260, 8315), (325, 6652), (650, 3326), (1300, 1663)]