64638380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{170101}}^1$

素因数の和:170129

約数の個数: 24

約数和(自身を含む): 142885680

約数和(自身を除く): 78247300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 170101, 340202, 680404, 850505, 1701010, 3231919, 3402020, 6463838, 12927676, 16159595, 32319190, 64638380]

約数ペア:

[(1, 64638380), (2, 32319190), (4, 16159595), (5, 12927676), (10, 6463838), (19, 3402020), (20, 3231919), (38, 1701010), (76, 850505), (95, 680404), (190, 340202), (380, 170101)]