78645

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{107}}^1$

素因数の和:129

約数の個数: 24

約数和(自身を含む): 147744

約数和(自身を除く): 69099

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 107, 147, 245, 321, 535, 735, 749, 1605, 2247, 3745, 5243, 11235, 15729, 26215, 78645]

約数ペア:

[(1, 78645), (3, 26215), (5, 15729), (7, 11235), (15, 5243), (21, 3745), (35, 2247), (49, 1605), (105, 749), (107, 735), (147, 535), (245, 321)]