28196920

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1303}}^1$

素因数の和:1855

約数の個数: 32

約数和(自身を含む): 63609120

約数和(自身を除く): 35412200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 1082, 1303, 2164, 2606, 2705, 4328, 5212, 5410, 6515, 10424, 10820, 13030, 21640, 26060, 52120, 704923, 1409846, 2819692, 3524615, 5639384, 7049230, 14098460, 28196920]

約数ペア:

[(1, 28196920), (2, 14098460), (4, 7049230), (5, 5639384), (8, 3524615), (10, 2819692), (20, 1409846), (40, 704923), (541, 52120), (1082, 26060), (1303, 21640), (2164, 13030), (2606, 10820), (2705, 10424), (4328, 6515), (5212, 5410)]