20607545

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 29721600

約数和(自身を除く): 9114055

約数列:

[1, 5, 7, 29, 35, 79, 145, 203, 257, 395, 553, 1015, 1285, 1799, 2291, 2765, 7453, 8995, 11455, 16037, 20303, 37265, 52171, 80185, 101515, 142121, 260855, 588787, 710605, 2943935, 4121509, 20607545]

約数ペア:

[(1, 20607545), (5, 4121509), (7, 2943935), (29, 710605), (35, 588787), (79, 260855), (145, 142121), (203, 101515), (257, 80185), (395, 52171), (553, 37265), (1015, 20303), (1285, 16037), (1799, 11455), (2291, 8995), (2765, 7453)]