180015325

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 267840000

約数和(自身を除く): 87824675

約数列:

[1, 5, 7, 25, 29, 35, 79, 145, 175, 203, 395, 449, 553, 725, 1015, 1975, 2245, 2291, 2765, 3143, 5075, 11225, 11455, 13021, 13825, 15715, 16037, 35471, 57275, 65105, 78575, 80185, 91147, 177355, 248297, 325525, 400925, 455735, 886775, 1028659, 1241485, 2278675, 5143295, 6207425, 7200613, 25716475, 36003065, 180015325]

約数ペア:

[(1, 180015325), (5, 36003065), (7, 25716475), (25, 7200613), (29, 6207425), (35, 5143295), (79, 2278675), (145, 1241485), (175, 1028659), (203, 886775), (395, 455735), (449, 400925), (553, 325525), (725, 248297), (1015, 177355), (1975, 91147), (2245, 80185), (2291, 78575), (2765, 65105), (3143, 57275), (5075, 35471), (11225, 16037), (11455, 15715), (13021, 13825)]