12997615

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:183

約数の個数: 32

約数和(自身を含む): 17418240

約数和(自身を除く): 4420625

約数列:

[1, 5, 19, 41, 47, 71, 95, 205, 235, 355, 779, 893, 1349, 1927, 2911, 3337, 3895, 4465, 6745, 9635, 14555, 16685, 36613, 55309, 63403, 136817, 183065, 276545, 317015, 684085, 2599523, 12997615]

約数ペア:

[(1, 12997615), (5, 2599523), (19, 684085), (41, 317015), (47, 276545), (71, 183065), (95, 136817), (205, 63403), (235, 55309), (355, 36613), (779, 16685), (893, 14555), (1349, 9635), (1927, 6745), (2911, 4465), (3337, 3895)]