1286820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{2383}}^1$

素因数の和:2401

約数の個数: 48

約数和(自身を含む): 4005120

約数和(自身を除く): 2718300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 2383, 4766, 7149, 9532, 11915, 14298, 21447, 23830, 28596, 35745, 42894, 47660, 64341, 71490, 85788, 107235, 128682, 142980, 214470, 257364, 321705, 428940, 643410, 1286820]

約数ペア:

[(1, 1286820), (2, 643410), (3, 428940), (4, 321705), (5, 257364), (6, 214470), (9, 142980), (10, 128682), (12, 107235), (15, 85788), (18, 71490), (20, 64341), (27, 47660), (30, 42894), (36, 35745), (45, 28596), (54, 23830), (60, 21447), (90, 14298), (108, 11915), (135, 9532), (180, 7149), (270, 4766), (540, 2383)]