81485215

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1867}}^1$

素因数の和:1951

約数の個数: 32

約数和(自身を含む): 118356480

約数和(自身を除く): 36871265

約数列:

[1, 5, 7, 29, 35, 43, 145, 203, 215, 301, 1015, 1247, 1505, 1867, 6235, 8729, 9335, 13069, 43645, 54143, 65345, 80281, 270715, 379001, 401405, 561967, 1895005, 2328149, 2809835, 11640745, 16297043, 81485215]

約数ペア:

[(1, 81485215), (5, 16297043), (7, 11640745), (29, 2809835), (35, 2328149), (43, 1895005), (145, 561967), (203, 401405), (215, 379001), (301, 270715), (1015, 80281), (1247, 65345), (1505, 54143), (1867, 43645), (6235, 13069), (8729, 9335)]