78420075

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^2\times {\mathrm{281}}^1$

素因数の和:416

約数の個数: 36

約数和(自身を含む): 132283944

約数和(自身を除く): 53863869

約数列:

[1, 3, 5, 15, 25, 61, 75, 183, 281, 305, 843, 915, 1405, 1525, 3721, 4215, 4575, 7025, 11163, 17141, 18605, 21075, 51423, 55815, 85705, 93025, 257115, 279075, 428525, 1045601, 1285575, 3136803, 5228005, 15684015, 26140025, 78420075]

約数ペア:

[(1, 78420075), (3, 26140025), (5, 15684015), (15, 5228005), (25, 3136803), (61, 1285575), (75, 1045601), (183, 428525), (281, 279075), (305, 257115), (843, 93025), (915, 85705), (1405, 55815), (1525, 51423), (3721, 21075), (4215, 18605), (4575, 17141), (7025, 11163)]