1380645

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{487}}^1$

素因数の和:511

約数の個数: 40

約数和(自身を含む): 2834304

約数和(自身を除く): 1453659

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 487, 567, 945, 1461, 2435, 2835, 3409, 4383, 7305, 10227, 13149, 17045, 21915, 30681, 39447, 51135, 65745, 92043, 153405, 197235, 276129, 460215, 1380645]

約数ペア:

[(1, 1380645), (3, 460215), (5, 276129), (7, 197235), (9, 153405), (15, 92043), (21, 65745), (27, 51135), (35, 39447), (45, 30681), (63, 21915), (81, 17045), (105, 13149), (135, 10227), (189, 7305), (315, 4383), (405, 3409), (487, 2835), (567, 2435), (945, 1461)]