20903460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2543}}^1$

素因数の和:2692

約数の個数: 48

約数和(自身を含む): 58980096

約数和(自身を除く): 38076636

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2543, 2740, 4110, 5086, 7629, 8220, 10172, 12715, 15258, 25430, 30516, 38145, 50860, 76290, 152580, 348391, 696782, 1045173, 1393564, 1741955, 2090346, 3483910, 4180692, 5225865, 6967820, 10451730, 20903460]

約数ペア:

[(1, 20903460), (2, 10451730), (3, 6967820), (4, 5225865), (5, 4180692), (6, 3483910), (10, 2090346), (12, 1741955), (15, 1393564), (20, 1045173), (30, 696782), (60, 348391), (137, 152580), (274, 76290), (411, 50860), (548, 38145), (685, 30516), (822, 25430), (1370, 15258), (1644, 12715), (2055, 10172), (2543, 8220), (2740, 7629), (4110, 5086)]