15664265

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 21150720

約数和(自身を除く): 5486455

約数列:

[1, 5, 19, 23, 67, 95, 107, 115, 335, 437, 535, 1273, 1541, 2033, 2185, 2461, 6365, 7169, 7705, 10165, 12305, 29279, 35845, 46759, 136211, 146395, 164887, 233795, 681055, 824435, 3132853, 15664265]

約数ペア:

[(1, 15664265), (5, 3132853), (19, 824435), (23, 681055), (67, 233795), (95, 164887), (107, 146395), (115, 136211), (335, 46759), (437, 35845), (535, 29279), (1273, 12305), (1541, 10165), (2033, 7705), (2185, 7169), (2461, 6365)]