2780115

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 4898880

約数和(自身を除く): 2118765

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 269, 689, 795, 807, 1345, 2067, 3445, 3497, 4035, 10335, 10491, 14257, 17485, 42771, 52455, 71285, 185341, 213855, 556023, 926705, 2780115]

約数ペア:

[(1, 2780115), (3, 926705), (5, 556023), (13, 213855), (15, 185341), (39, 71285), (53, 52455), (65, 42771), (159, 17485), (195, 14257), (265, 10491), (269, 10335), (689, 4035), (795, 3497), (807, 3445), (1345, 2067)]