20935460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11503}}^1$

素因数の和:11532

約数の個数: 48

約数和(自身を含む): 54114816

約数和(自身を除く): 33179356

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 11503, 23006, 46012, 57515, 80521, 115030, 149539, 161042, 230060, 299078, 322084, 402605, 598156, 747695, 805210, 1046773, 1495390, 1610420, 2093546, 2990780, 4187092, 5233865, 10467730, 20935460]

約数ペア:

[(1, 20935460), (2, 10467730), (4, 5233865), (5, 4187092), (7, 2990780), (10, 2093546), (13, 1610420), (14, 1495390), (20, 1046773), (26, 805210), (28, 747695), (35, 598156), (52, 402605), (65, 322084), (70, 299078), (91, 230060), (130, 161042), (140, 149539), (182, 115030), (260, 80521), (364, 57515), (455, 46012), (910, 23006), (1820, 11503)]