201664625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2207}}^1$

素因数の和:2282

約数の個数: 32

約数和(自身を含む): 272802816

約数和(自身を除く): 71138191

約数列:

[1, 5, 17, 25, 43, 85, 125, 215, 425, 731, 1075, 2125, 2207, 3655, 5375, 11035, 18275, 37519, 55175, 91375, 94901, 187595, 275875, 474505, 937975, 1613317, 2372525, 4689875, 8066585, 11862625, 40332925, 201664625]

約数ペア:

[(1, 201664625), (5, 40332925), (17, 11862625), (25, 8066585), (43, 4689875), (85, 2372525), (125, 1613317), (215, 937975), (425, 474505), (731, 275875), (1075, 187595), (2125, 94901), (2207, 91375), (3655, 55175), (5375, 37519), (11035, 18275)]