18875075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{503}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 24998400

約数和(自身を除く): 6123325

約数列:

[1, 5, 19, 25, 79, 95, 395, 475, 503, 1501, 1975, 2515, 7505, 9557, 12575, 37525, 39737, 47785, 198685, 238925, 755003, 993425, 3775015, 18875075]

約数ペア:

[(1, 18875075), (5, 3775015), (19, 993425), (25, 755003), (79, 238925), (95, 198685), (395, 47785), (475, 39737), (503, 37525), (1501, 12575), (1975, 9557), (2515, 7505)]