20403740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8573}}^1$

素因数の和:8606

約数の個数: 48

約数和(自身を含む): 51855552

約数和(自身を除く): 31451812

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8573, 17146, 34292, 42865, 60011, 85730, 120022, 145741, 171460, 240044, 291482, 300055, 582964, 600110, 728705, 1020187, 1200220, 1457410, 2040374, 2914820, 4080748, 5100935, 10201870, 20403740]

約数ペア:

[(1, 20403740), (2, 10201870), (4, 5100935), (5, 4080748), (7, 2914820), (10, 2040374), (14, 1457410), (17, 1200220), (20, 1020187), (28, 728705), (34, 600110), (35, 582964), (68, 300055), (70, 291482), (85, 240044), (119, 171460), (140, 145741), (170, 120022), (238, 85730), (340, 60011), (476, 42865), (595, 34292), (1190, 17146), (2380, 8573)]