40278520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43781}}^1$

素因数の和:43815

約数の個数: 32

約数和(自身を含む): 94569120

約数和(自身を除く): 54290600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 43781, 87562, 175124, 218905, 350248, 437810, 875620, 1006963, 1751240, 2013926, 4027852, 5034815, 8055704, 10069630, 20139260, 40278520]

約数ペア:

[(1, 40278520), (2, 20139260), (4, 10069630), (5, 8055704), (8, 5034815), (10, 4027852), (20, 2013926), (23, 1751240), (40, 1006963), (46, 875620), (92, 437810), (115, 350248), (184, 218905), (230, 175124), (460, 87562), (920, 43781)]