64139180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19919}}^1$

素因数の和:19958

約数の個数: 48

約数和(自身を含む): 160634880

約数和(自身を除く): 96495700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 19919, 39838, 79676, 99595, 139433, 199190, 278866, 398380, 458137, 557732, 697165, 916274, 1394330, 1832548, 2290685, 2788660, 3206959, 4581370, 6413918, 9162740, 12827836, 16034795, 32069590, 64139180]

約数ペア:

[(1, 64139180), (2, 32069590), (4, 16034795), (5, 12827836), (7, 9162740), (10, 6413918), (14, 4581370), (20, 3206959), (23, 2788660), (28, 2290685), (35, 1832548), (46, 1394330), (70, 916274), (92, 697165), (115, 557732), (140, 458137), (161, 398380), (230, 278866), (322, 199190), (460, 139433), (644, 99595), (805, 79676), (1610, 39838), (3220, 19919)]