19619180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3259}}^1$

素因数の和:3318

約数の個数: 48

約数和(自身を含む): 48195840

約数和(自身を除く): 28576660

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, 3259, 6020, 6518, 13036, 16295, 22813, 32590, 45626, 65180, 91252, 114065, 140137, 228130, 280274, 456260, 560548, 700685, 980959, 1401370, 1961918, 2802740, 3923836, 4904795, 9809590, 19619180]

約数ペア:

[(1, 19619180), (2, 9809590), (4, 4904795), (5, 3923836), (7, 2802740), (10, 1961918), (14, 1401370), (20, 980959), (28, 700685), (35, 560548), (43, 456260), (70, 280274), (86, 228130), (140, 140137), (172, 114065), (215, 91252), (301, 65180), (430, 45626), (602, 32590), (860, 22813), (1204, 16295), (1505, 13036), (3010, 6518), (3259, 6020)]