28380645

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4889}}^1$

素因数の和:4946

約数の個数: 32

約数和(自身を含む): 51638400

約数和(自身を除く): 23257755

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 4889, 5805, 14667, 24445, 44001, 73335, 132003, 210227, 220005, 630681, 660015, 1051135, 1892043, 3153405, 5676129, 9460215, 28380645]

約数ペア:

[(1, 28380645), (3, 9460215), (5, 5676129), (9, 3153405), (15, 1892043), (27, 1051135), (43, 660015), (45, 630681), (129, 220005), (135, 210227), (215, 132003), (387, 73335), (645, 44001), (1161, 24445), (1935, 14667), (4889, 5805)]