19217720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16567}}^1$

素因数の和:16607

約数の個数: 32

約数和(自身を含む): 44733600

約数和(自身を除く): 25515880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 16567, 33134, 66268, 82835, 132536, 165670, 331340, 480443, 662680, 960886, 1921772, 2402215, 3843544, 4804430, 9608860, 19217720]

約数ペア:

[(1, 19217720), (2, 9608860), (4, 4804430), (5, 3843544), (8, 2402215), (10, 1921772), (20, 960886), (29, 662680), (40, 480443), (58, 331340), (116, 165670), (145, 132536), (232, 82835), (290, 66268), (580, 33134), (1160, 16567)]