12581420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 28153440

約数和(自身を除く): 15572020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 226, 293, 380, 452, 565, 586, 1130, 1172, 1465, 2147, 2260, 2930, 4294, 5567, 5860, 8588, 10735, 11134, 21470, 22268, 27835, 33109, 42940, 55670, 66218, 111340, 132436, 165545, 331090, 629071, 662180, 1258142, 2516284, 3145355, 6290710, 12581420]

約数ペア:

[(1, 12581420), (2, 6290710), (4, 3145355), (5, 2516284), (10, 1258142), (19, 662180), (20, 629071), (38, 331090), (76, 165545), (95, 132436), (113, 111340), (190, 66218), (226, 55670), (293, 42940), (380, 33109), (452, 27835), (565, 22268), (586, 21470), (1130, 11134), (1172, 10735), (1465, 8588), (2147, 5860), (2260, 5567), (2930, 4294)]