19623760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18869}}^1$

素因数の和:18895

約数の個数: 40

約数和(自身を含む): 49137480

約数和(自身を除く): 29513720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18869, 37738, 75476, 94345, 150952, 188690, 245297, 301904, 377380, 490594, 754760, 981188, 1226485, 1509520, 1962376, 2452970, 3924752, 4905940, 9811880, 19623760]

約数ペア:

[(1, 19623760), (2, 9811880), (4, 4905940), (5, 3924752), (8, 2452970), (10, 1962376), (13, 1509520), (16, 1226485), (20, 981188), (26, 754760), (40, 490594), (52, 377380), (65, 301904), (80, 245297), (104, 188690), (130, 150952), (208, 94345), (260, 75476), (520, 37738), (1040, 18869)]