28040075

素因数分解:

$5^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{983}}^1$

素因数の和:1163

約数の個数: 24

約数和(自身を含む): 40021248

約数和(自身を除く): 11981173

約数列:

[1, 5, 7, 25, 35, 163, 175, 815, 983, 1141, 4075, 4915, 5705, 6881, 24575, 28525, 34405, 160229, 172025, 801145, 1121603, 4005725, 5608015, 28040075]

約数ペア:

[(1, 28040075), (5, 5608015), (7, 4005725), (25, 1121603), (35, 801145), (163, 172025), (175, 160229), (815, 34405), (983, 28525), (1141, 24575), (4075, 6881), (4915, 5705)]