81818035

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 109948608

約数和(自身を除く): 28130573

約数列:

[1, 5, 13, 43, 65, 73, 215, 365, 401, 559, 949, 2005, 2795, 3139, 4745, 5213, 15695, 17243, 26065, 29273, 40807, 86215, 146365, 204035, 224159, 380549, 1120795, 1258739, 1902745, 6293695, 16363607, 81818035]

約数ペア:

[(1, 81818035), (5, 16363607), (13, 6293695), (43, 1902745), (65, 1258739), (73, 1120795), (215, 380549), (365, 224159), (401, 204035), (559, 146365), (949, 86215), (2005, 40807), (2795, 29273), (3139, 26065), (4745, 17243), (5213, 15695)]