78753320

素因数分解:

$2^3\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{1511}}^1$

素因数の和:2825

約数の個数: 32

約数和(自身を含む): 177448320

約数和(自身を除く): 98695000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1303, 1511, 2606, 3022, 5212, 6044, 6515, 7555, 10424, 12088, 13030, 15110, 26060, 30220, 52120, 60440, 1968833, 3937666, 7875332, 9844165, 15750664, 19688330, 39376660, 78753320]

約数ペア:

[(1, 78753320), (2, 39376660), (4, 19688330), (5, 15750664), (8, 9844165), (10, 7875332), (20, 3937666), (40, 1968833), (1303, 60440), (1511, 52120), (2606, 30220), (3022, 26060), (5212, 15110), (6044, 13030), (6515, 12088), (7555, 10424)]