16428020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{433}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 39664128

約数和(自身を除く): 23236108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 271, 433, 542, 866, 1084, 1355, 1732, 1897, 2165, 2710, 3031, 3794, 4330, 5420, 6062, 7588, 8660, 9485, 12124, 15155, 18970, 30310, 37940, 60620, 117343, 234686, 469372, 586715, 821401, 1173430, 1642802, 2346860, 3285604, 4107005, 8214010, 16428020]

約数ペア:

[(1, 16428020), (2, 8214010), (4, 4107005), (5, 3285604), (7, 2346860), (10, 1642802), (14, 1173430), (20, 821401), (28, 586715), (35, 469372), (70, 234686), (140, 117343), (271, 60620), (433, 37940), (542, 30310), (866, 18970), (1084, 15155), (1355, 12124), (1732, 9485), (1897, 8660), (2165, 7588), (2710, 6062), (3031, 5420), (3794, 4330)]