20609120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18401}}^1$

素因数の和:18423

約数の個数: 48

約数和(自身を含む): 55647648

約数和(自身を除く): 35038528

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18401, 36802, 73604, 92005, 128807, 147208, 184010, 257614, 294416, 368020, 515228, 588832, 644035, 736040, 1030456, 1288070, 1472080, 2060912, 2576140, 2944160, 4121824, 5152280, 10304560, 20609120]

約数ペア:

[(1, 20609120), (2, 10304560), (4, 5152280), (5, 4121824), (7, 2944160), (8, 2576140), (10, 2060912), (14, 1472080), (16, 1288070), (20, 1030456), (28, 736040), (32, 644035), (35, 588832), (40, 515228), (56, 368020), (70, 294416), (80, 257614), (112, 184010), (140, 147208), (160, 128807), (224, 92005), (280, 73604), (560, 36802), (1120, 18401)]