209418075

素因数分解:

$3^3\times 5^2\times {\mathrm{557}}^2$

素因数の和:1133

約数の個数: 36

約数和(自身を含む): 385400680

約数和(自身を除く): 175982605

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 557, 675, 1671, 2785, 5013, 8355, 13925, 15039, 25065, 41775, 75195, 125325, 310249, 375975, 930747, 1551245, 2792241, 4653735, 7756225, 8376723, 13961205, 23268675, 41883615, 69806025, 209418075]

約数ペア:

[(1, 209418075), (3, 69806025), (5, 41883615), (9, 23268675), (15, 13961205), (25, 8376723), (27, 7756225), (45, 4653735), (75, 2792241), (135, 1551245), (225, 930747), (557, 375975), (675, 310249), (1671, 125325), (2785, 75195), (5013, 41775), (8355, 25065), (13925, 15039)]