81530425

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4639}}^1$

素因数の和:4705

約数の個数: 24

約数和(自身を含む): 109318400

約数和(自身を除く): 27787975

約数列:

[1, 5, 19, 25, 37, 95, 185, 475, 703, 925, 3515, 4639, 17575, 23195, 88141, 115975, 171643, 440705, 858215, 2203525, 3261217, 4291075, 16306085, 81530425]

約数ペア:

[(1, 81530425), (5, 16306085), (19, 4291075), (25, 3261217), (37, 2203525), (95, 858215), (185, 440705), (475, 171643), (703, 115975), (925, 88141), (3515, 23195), (4639, 17575)]