145254520

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{12923}}^1$

素因数の和:13215

約数の個数: 32

約数和(自身を含む): 328011120

約数和(自身を除く): 182756600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 11240, 12923, 25846, 51692, 64615, 103384, 129230, 258460, 516920, 3631363, 7262726, 14525452, 18156815, 29050904, 36313630, 72627260, 145254520]

約数ペア:

[(1, 145254520), (2, 72627260), (4, 36313630), (5, 29050904), (8, 18156815), (10, 14525452), (20, 7262726), (40, 3631363), (281, 516920), (562, 258460), (1124, 129230), (1405, 103384), (2248, 64615), (2810, 51692), (5620, 25846), (11240, 12923)]