404494120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{235171}}^1$

素因数の和:235225

約数の個数: 32

約数和(自身を含む): 931281120

約数和(自身を除く): 526787000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 235171, 470342, 940684, 1175855, 1881368, 2351710, 4703420, 9406840, 10112353, 20224706, 40449412, 50561765, 80898824, 101123530, 202247060, 404494120]

約数ペア:

[(1, 404494120), (2, 202247060), (4, 101123530), (5, 80898824), (8, 50561765), (10, 40449412), (20, 20224706), (40, 10112353), (43, 9406840), (86, 4703420), (172, 2351710), (215, 1881368), (344, 1175855), (430, 940684), (860, 470342), (1720, 235171)]