131400836

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 268837632

約数和(自身を除く): 137436796

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 157, 284, 314, 421, 497, 628, 842, 994, 1099, 1684, 1988, 2198, 2947, 4396, 5894, 11147, 11788, 22294, 29891, 44588, 59782, 66097, 78029, 119564, 132194, 156058, 209237, 264388, 312116, 418474, 462679, 836948, 925358, 1850716, 4692887, 9385774, 18771548, 32850209, 65700418, 131400836]

約数ペア:

[(1, 131400836), (2, 65700418), (4, 32850209), (7, 18771548), (14, 9385774), (28, 4692887), (71, 1850716), (142, 925358), (157, 836948), (284, 462679), (314, 418474), (421, 312116), (497, 264388), (628, 209237), (842, 156058), (994, 132194), (1099, 119564), (1684, 78029), (1988, 66097), (2198, 59782), (2947, 44588), (4396, 29891), (5894, 22294), (11147, 11788)]