81068940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{450383}}^1$

素因数の和:450398

約数の個数: 36

約数和(自身を含む): 245909664

約数和(自身を除く): 164840724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 450383, 900766, 1351149, 1801532, 2251915, 2702298, 4053447, 4503830, 5404596, 6755745, 8106894, 9007660, 13511490, 16213788, 20267235, 27022980, 40534470, 81068940]

約数ペア:

[(1, 81068940), (2, 40534470), (3, 27022980), (4, 20267235), (5, 16213788), (6, 13511490), (9, 9007660), (10, 8106894), (12, 6755745), (15, 5404596), (18, 4503830), (20, 4053447), (30, 2702298), (36, 2251915), (45, 1801532), (60, 1351149), (90, 900766), (180, 450383)]