2689995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 5723136

約数和(自身を除く): 3033141

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 137, 165, 187, 231, 255, 357, 385, 411, 561, 595, 685, 935, 959, 1155, 1309, 1507, 1785, 2055, 2329, 2805, 2877, 3927, 4521, 4795, 6545, 6987, 7535, 10549, 11645, 14385, 16303, 19635, 22605, 25619, 31647, 34935, 48909, 52745, 76857, 81515, 128095, 158235, 179333, 244545, 384285, 537999, 896665, 2689995]

約数ペア:

[(1, 2689995), (3, 896665), (5, 537999), (7, 384285), (11, 244545), (15, 179333), (17, 158235), (21, 128095), (33, 81515), (35, 76857), (51, 52745), (55, 48909), (77, 34935), (85, 31647), (105, 25619), (119, 22605), (137, 19635), (165, 16303), (187, 14385), (231, 11645), (255, 10549), (357, 7535), (385, 6987), (411, 6545), (561, 4795), (595, 4521), (685, 3927), (935, 2877), (959, 2805), (1155, 2329), (1309, 2055), (1507, 1785)]