28603880

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2719}}^1$

素因数の和:2993

約数の個数: 32

約数和(自身を含む): 64627200

約数和(自身を除く): 36023320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 2719, 5260, 5438, 10520, 10876, 13595, 21752, 27190, 54380, 108760, 715097, 1430194, 2860388, 3575485, 5720776, 7150970, 14301940, 28603880]

約数ペア:

[(1, 28603880), (2, 14301940), (4, 7150970), (5, 5720776), (8, 3575485), (10, 2860388), (20, 1430194), (40, 715097), (263, 108760), (526, 54380), (1052, 27190), (1315, 21752), (2104, 13595), (2630, 10876), (2719, 10520), (5260, 5438)]