19257080

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1117}}^1$

素因数の和:1559

約数の個数: 32

約数和(自身を含む): 43467840

約数和(自身を除く): 24210760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1117, 1724, 2155, 2234, 3448, 4310, 4468, 5585, 8620, 8936, 11170, 17240, 22340, 44680, 481427, 962854, 1925708, 2407135, 3851416, 4814270, 9628540, 19257080]

約数ペア:

[(1, 19257080), (2, 9628540), (4, 4814270), (5, 3851416), (8, 2407135), (10, 1925708), (20, 962854), (40, 481427), (431, 44680), (862, 22340), (1117, 17240), (1724, 11170), (2155, 8936), (2234, 8620), (3448, 5585), (4310, 4468)]