28709595

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 52427232

約数和(自身を除く): 23717637

約数列:

[1, 3, 5, 9, 15, 37, 43, 45, 111, 129, 185, 215, 333, 387, 401, 555, 645, 1203, 1591, 1665, 1935, 2005, 3609, 4773, 6015, 7955, 14319, 14837, 17243, 18045, 23865, 44511, 51729, 71595, 74185, 86215, 133533, 155187, 222555, 258645, 637991, 667665, 775935, 1913973, 3189955, 5741919, 9569865, 28709595]

約数ペア:

[(1, 28709595), (3, 9569865), (5, 5741919), (9, 3189955), (15, 1913973), (37, 775935), (43, 667665), (45, 637991), (111, 258645), (129, 222555), (185, 155187), (215, 133533), (333, 86215), (387, 74185), (401, 71595), (555, 51729), (645, 44511), (1203, 23865), (1591, 18045), (1665, 17243), (1935, 14837), (2005, 14319), (3609, 7955), (4773, 6015)]