19837040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10781}}^1$

素因数の和:10817

約数の個数: 40

約数和(自身を含む): 48130848

約数和(自身を除く): 28293808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10781, 21562, 43124, 53905, 86248, 107810, 172496, 215620, 247963, 431240, 495926, 862480, 991852, 1239815, 1983704, 2479630, 3967408, 4959260, 9918520, 19837040]

約数ペア:

[(1, 19837040), (2, 9918520), (4, 4959260), (5, 3967408), (8, 2479630), (10, 1983704), (16, 1239815), (20, 991852), (23, 862480), (40, 495926), (46, 431240), (80, 247963), (92, 215620), (115, 172496), (184, 107810), (230, 86248), (368, 53905), (460, 43124), (920, 21562), (1840, 10781)]