20157962560

素因数分解:

$2^6\times 5^1\times {\mathrm{691}}^1\times {\mathrm{91163}}^1$

素因数の和:91871

約数の個数: 56

約数和(自身を含む): 48071141856

約数和(自身を除く): 27913179296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 691, 1382, 2764, 3455, 5528, 6910, 11056, 13820, 22112, 27640, 44224, 55280, 91163, 110560, 182326, 221120, 364652, 455815, 729304, 911630, 1458608, 1823260, 2917216, 3646520, 5834432, 7293040, 14586080, 29172160, 62993633, 125987266, 251974532, 314968165, 503949064, 629936330, 1007898128, 1259872660, 2015796256, 2519745320, 4031592512, 5039490640, 10078981280, 20157962560]

約数ペア:

[(1, 20157962560), (2, 10078981280), (4, 5039490640), (5, 4031592512), (8, 2519745320), (10, 2015796256), (16, 1259872660), (20, 1007898128), (32, 629936330), (40, 503949064), (64, 314968165), (80, 251974532), (160, 125987266), (320, 62993633), (691, 29172160), (1382, 14586080), (2764, 7293040), (3455, 5834432), (5528, 3646520), (6910, 2917216), (11056, 1823260), (13820, 1458608), (22112, 911630), (27640, 729304), (44224, 455815), (55280, 364652), (91163, 221120), (110560, 182326)]