16648460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 36408960

約数和(自身を除く): 19760500

約数列:

[1, 2, 4, 5, 10, 20, 41, 79, 82, 158, 164, 205, 257, 316, 395, 410, 514, 790, 820, 1028, 1285, 1580, 2570, 3239, 5140, 6478, 10537, 12956, 16195, 20303, 21074, 32390, 40606, 42148, 52685, 64780, 81212, 101515, 105370, 203030, 210740, 406060, 832423, 1664846, 3329692, 4162115, 8324230, 16648460]

約数ペア:

[(1, 16648460), (2, 8324230), (4, 4162115), (5, 3329692), (10, 1664846), (20, 832423), (41, 406060), (79, 210740), (82, 203030), (158, 105370), (164, 101515), (205, 81212), (257, 64780), (316, 52685), (395, 42148), (410, 40606), (514, 32390), (790, 21074), (820, 20303), (1028, 16195), (1285, 12956), (1580, 10537), (2570, 6478), (3239, 5140)]