19269860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 42650496

約数和(自身を除く): 23380636

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 163, 230, 257, 326, 460, 514, 652, 815, 1028, 1285, 1630, 2570, 3260, 3749, 5140, 5911, 7498, 11822, 14996, 18745, 23644, 29555, 37490, 41891, 59110, 74980, 83782, 118220, 167564, 209455, 418910, 837820, 963493, 1926986, 3853972, 4817465, 9634930, 19269860]

約数ペア:

[(1, 19269860), (2, 9634930), (4, 4817465), (5, 3853972), (10, 1926986), (20, 963493), (23, 837820), (46, 418910), (92, 209455), (115, 167564), (163, 118220), (230, 83782), (257, 74980), (326, 59110), (460, 41891), (514, 37490), (652, 29555), (815, 23644), (1028, 18745), (1285, 14996), (1630, 11822), (2570, 7498), (3260, 5911), (3749, 5140)]