78480575

素因数分解:

$5^2\times {\mathrm{79}}^2\times {\mathrm{503}}^1$

素因数の和:671

約数の個数: 18

約数和(自身を含む): 98759304

約数和(自身を除く): 20278729

約数列:

[1, 5, 25, 79, 395, 503, 1975, 2515, 6241, 12575, 31205, 39737, 156025, 198685, 993425, 3139223, 15696115, 78480575]

約数ペア:

[(1, 78480575), (5, 15696115), (25, 3139223), (79, 993425), (395, 198685), (503, 156025), (1975, 39737), (2515, 31205), (6241, 12575)]