81316565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1289}}^1$

素因数の和:1373

約数の個数: 32

約数和(自身を含む): 112942080

約数和(自身を除く): 31625515

約数列:

[1, 5, 11, 31, 37, 55, 155, 185, 341, 407, 1147, 1289, 1705, 2035, 5735, 6445, 12617, 14179, 39959, 47693, 63085, 70895, 199795, 238465, 439549, 524623, 1478483, 2197745, 2623115, 7392415, 16263313, 81316565]

約数ペア:

[(1, 81316565), (5, 16263313), (11, 7392415), (31, 2623115), (37, 2197745), (55, 1478483), (155, 524623), (185, 439549), (341, 238465), (407, 199795), (1147, 70895), (1289, 63085), (1705, 47693), (2035, 39959), (5735, 14179), (6445, 12617)]