18614375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 40

約数和(自身を含む): 26241600

約数和(自身を除く): 7627225

約数列:

[1, 5, 13, 25, 29, 65, 79, 125, 145, 325, 377, 395, 625, 725, 1027, 1625, 1885, 1975, 2291, 3625, 5135, 8125, 9425, 9875, 11455, 18125, 25675, 29783, 47125, 49375, 57275, 128375, 148915, 235625, 286375, 641875, 744575, 1431875, 3722875, 18614375]

約数ペア:

[(1, 18614375), (5, 3722875), (13, 1431875), (25, 744575), (29, 641875), (65, 286375), (79, 235625), (125, 148915), (145, 128375), (325, 57275), (377, 49375), (395, 47125), (625, 29783), (725, 25675), (1027, 18125), (1625, 11455), (1885, 9875), (1975, 9425), (2291, 8125), (3625, 5135)]