25981880

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4673}}^1$

素因数の和:4823

約数の個数: 32

約数和(自身を含む): 58892400

約数和(自身を除く): 32910520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 4673, 5560, 9346, 18692, 23365, 37384, 46730, 93460, 186920, 649547, 1299094, 2598188, 3247735, 5196376, 6495470, 12990940, 25981880]

約数ペア:

[(1, 25981880), (2, 12990940), (4, 6495470), (5, 5196376), (8, 3247735), (10, 2598188), (20, 1299094), (40, 649547), (139, 186920), (278, 93460), (556, 46730), (695, 37384), (1112, 23365), (1390, 18692), (2780, 9346), (4673, 5560)]