12961040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8527}}^1$

素因数の和:8559

約数の個数: 40

約数和(自身を含む): 31724160

約数和(自身を除く): 18763120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 8527, 17054, 34108, 42635, 68216, 85270, 136432, 162013, 170540, 324026, 341080, 648052, 682160, 810065, 1296104, 1620130, 2592208, 3240260, 6480520, 12961040]

約数ペア:

[(1, 12961040), (2, 6480520), (4, 3240260), (5, 2592208), (8, 1620130), (10, 1296104), (16, 810065), (19, 682160), (20, 648052), (38, 341080), (40, 324026), (76, 170540), (80, 162013), (95, 136432), (152, 85270), (190, 68216), (304, 42635), (380, 34108), (760, 17054), (1520, 8527)]