1620218925

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{553921}}^1$

素因数の和:553950

約数の個数: 36

約数和(自身を含む): 3125227924

約数和(自身を除く): 1505008999

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 553921, 1661763, 2769605, 4985289, 7200973, 8308815, 13848025, 21602919, 24926445, 36004865, 41544075, 64808757, 108014595, 124632225, 180024325, 324043785, 540072975, 1620218925]

約数ペア:

[(1, 1620218925), (3, 540072975), (5, 324043785), (9, 180024325), (13, 124632225), (15, 108014595), (25, 64808757), (39, 41544075), (45, 36004865), (65, 24926445), (75, 21602919), (117, 13848025), (195, 8308815), (225, 7200973), (325, 4985289), (585, 2769605), (975, 1661763), (2925, 553921)]