19944260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3313}}^1$

素因数の和:3372

約数の個数: 48

約数和(自身を含む): 48994176

約数和(自身を除く): 29049916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3313, 6020, 6626, 13252, 16565, 23191, 33130, 46382, 66260, 92764, 115955, 142459, 231910, 284918, 463820, 569836, 712295, 997213, 1424590, 1994426, 2849180, 3988852, 4986065, 9972130, 19944260]

約数ペア:

[(1, 19944260), (2, 9972130), (4, 4986065), (5, 3988852), (7, 2849180), (10, 1994426), (14, 1424590), (20, 997213), (28, 712295), (35, 569836), (43, 463820), (70, 284918), (86, 231910), (140, 142459), (172, 115955), (215, 92764), (301, 66260), (430, 46382), (602, 33130), (860, 23191), (1204, 16565), (1505, 13252), (3010, 6626), (3313, 6020)]